数据库连接字符串大全
2010-12-24 16:16
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数据库连接字符串大全
Oracle
ODBC
New version:
"Driver={Microsoft
ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;"
Old version:
"Driver={Microsoft
ODBC Driver for Oracle}; ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;"
OLE DB, OleDbConnection (.NET)
Standard security:
"Provider=msdaora;Data
Source=MyOracleDB;User Id=UserName;Password=asdasd;"
This
one's from Microsoft, the following are from Oracle
Standard Security:
"Provider=OraOLEDB.Oracle;Data
Source=MyOracleDB;User Id=Username;Password=asdasd;"
Trusted Connection:
"Provider=OraOLEDB.Oracle;Data
Source=MyOracleDB;OSAuthent=1;"
OracleConnection (.NET)
Standard:
"Data
Source=MyOracleDB;Integrated Security=yes;"
This one
works only with Oracle 8i release 3 or later
Specifying username and password:
"Data
Source=MyOracleDB;User Id=username;Password=passwd;Integrated
Security=no;"
This one
works only with Oracle 8i release 3 or later
Declare the OracleConnection:
C#:
using
System.Data.OracleClient;
OracleConnection
oOracleConn = new OracleConnection();
oOracleConn.ConnectionString
= "my connection string";
oOracleConn.Open();
VB.NET:
Imports
System.Data.OracleClient
Dim
oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString
= "my connection string"
oOracleConn.Open()
Missing
the System.Data.OracleClient namespace? Download .NET Managed Provider for
Oracle >>
Great
article! "Features of Oracle Data Provider for .NET" by Rama Mohan G.
at C# Corner
Core Labs OraDirect (.NET)
Standard:
"User
ID=scott; Password=tiger; Host=ora; Pooling=true; Min Pool Size=0;Max Pool
Size=100; Connection Lifetime=0"
Read more
at Core Lab and the product page.
Data Shape
MS Data Shape:
"Provider=MSDataShape.1;Persist
Security Info=False;Data Provider=MSDAORA;Data Source=orac;user
id=username;password=mypw"
Want to
learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping
>>
SQL Server
ODBC
Standard Security:
"Driver={SQL
Server};Server=Aron1;Database=pubs;Uid=sa;Pwd=asdasd;"
Trusted connection:
"Driver={SQL
Server};Server=Aron1;Database=pubs;Trusted_Connection=yes;"
PRompt for username and passWord:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Driver={SQL Server};Server=Aron1;DataBase=pubs;"
OLE DB, OleDbConnection (.NET)
Standard Security:
"Provider=sqloledb;Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
Trusted Connection:
"Provider=sqloledb;Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance,
only SQLServer2000)
Prompt for username and password:
oConn.Provider
= "sqloledb"
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Data Source=Aron1;Initial Catalog=pubs;"
Connect via an ip address:
"Provider=sqloledb;Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
SqlConnection (.NET)
Standard Security:
"Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
- or -
"Server=Aron1;Database=pubs;User
ID=sa;Password=asdasd;Trusted_Connection=False"
(both connection strings produces the same
result)
Trusted Connection:
"Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
- or -
"Server=Aron1;Database=pubs;Trusted_Connection=True;"
(both connection strings produces the same
result)
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance,
only SQLServer2000)
Connect via an IP address:
"Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
Declare the SqlConnection:
C#:
using
System.Data.SqlClient;
SqlConnection
oSQLConn = new SqlConnection();
oSQLConn.ConnectionString="my
connection string";
oSQLConn.Open();
VB.NET:
Imports
System.Data.SqlClient
Dim
oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString="my
connection string"
oSQLConn.Open()
Data Shape
MS Data Shape
"Provider=MSDataShape;Data
Provider=SQLOLEDB;Data Source=Aron1;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
Want to
learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping
>>
Read more
How to define which network protocol to use
Example:
"Provider=sqloledb;Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
Name
Network library
dbnmpntw
Win32 Named Pipes
dbmssocn
Win32 Winsock TCP/IP
dbmsspxn
Win32 SPX/IPX
dbmsvinn
Win32 Banyan Vines
dbmsrpcn
Win32 Multi-Protocol (Windows RPC)
Important
note!
When
connecting through the SQLOLEDB provider use the syntax Network
Library=dbmssocn
and when
connecting through MSDASQL provider use the syntax Network=dbmssocn
All SqlConnection connection string properties
This
table shows all connection string properties for the ADO.NET SqlConnection
object. Most of the properties are also used in ADO. All properties and descriptions is from
msdn.
Name
Default Description
application
Name The name of the application, or
'.Net SqlClient Data Provider' if no application name is provided.
AttachDBFilename
-or-
extended
properties
-or-
Initial
File Name The name of the primary file,
including the full path name, of an attachable database. The database name must
be specified with the keyword 'database'.
Connect
Timeout
-or-
Connection
Timeout 15 The length of time (in seconds) to wait for a connection to the
server before terminating the attempt and generating an error.
Connection
Lifetime 0 When a connection is returned to the pool, its creation time is
compared with the current time, and the connection is destroyed if that time
span (in seconds) exceeds the value specified by connection lifetime. Useful in
clustered configurations to force load balancing between a running server and a
server just brought on-line.
Connection
Reset 'true' Determines whether the database connection is reset when being
removed from the pool. Setting to 'false' avoids making an additional server
round-trip when obtaining a connection, but the programmer must be aware that
the connection state is not being reset.
Current
Language The SQL Server Language record
name.
Data
Source
-or-
Server
-or-
Address
-or-
Addr
-or-
Network
Address The name or network address of
the instance of SQL Server to which to connect.
Enlist
'true' When true, the pooler automatically enlists the connection in the
creation thread's current transaction context.
Initial
Catalog
-or-
Database The name of the database.
Integrated
Security
-or-
Trusted_Connection
'false' Whether the connection is to be a secure connection or not. Recognized
values are 'true', 'false', and 'sspi', which is equivalent to 'true'.
Max Pool
Size 100 The maximum number of connections allowed in the pool.
Min Pool
Size 0 The minimum number of connections allowed in the pool.
Network
Library
-or-
Net
'dbmssocn' The network library used to establish a connection to an instance of
SQL Server. Supported values include dbnmpntw (Named Pipes), dbmsrpcn
(Multiprotocol), dbmsadsn (Apple Talk), dbmsgnet (VIA), dbmsipcn (Shared
Memory) and dbmsspxn (IPX/SPX), and dbmssocn (TCP/IP).
The
corresponding network DLL must be installed on the system to which you connect.
If you do not specify a network and you use a local server (for example,
"." or "(local)"), shared memory is used.
Packet
Size 8192 Size in bytes of the network packets used to communicate with an
instance of SQL Server.
Password
-or-
Pwd The password for the SQL Server account
logging on.
Persist
Security Info 'false' When set to 'false', security-sensitive information, such
as the password, is not returned as part of the connection if the connection is
open or has ever been in an open state. Resetting the connection string resets
all connection string values including the password.
Pooling
'true' When true, the SQLConnection object is drawn from the appropriate pool,
or if necessary, is created and added to the appropriate pool.
User
ID The SQL Server login account.
Workstation
ID the local computer name The name of the workstation connecting to SQL
Server.
Note
Use ; to
separate each property.
If a name
occurs more than once, the value from the last one in the connection string
will be used.
If you
are building your connection string in your app using values from user input
fields, make sure the user can't change the connection string by inserting an
additional property with another value within the user value.
SQL Server 2005
SQL Native Client ODBC Driver
Standard security:
"Driver={SQL
Native Client};Server=Aron1;Database=pubs;UID=sa;PWD=asdasd;"
Trusted connection:
"Driver={SQL
Native Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;"
Equivalents
Integrated
Security=SSPI equals Trusted_Connection=yes
Prompt for username and password:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Driver={SQL Native Client};Server=Aron1;DataBase=pubs;"
Enabling MARS (multiple active result sets):
"Driver={SQL
Native
Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;MARS_Connection=yes"
Equivalents
MultipleActiveResultSets=true
equals MARS_Connection=yes
Using
MARS with SQL Native Client, by Chris Lee >>
Encrypt data sent over network:
"Driver={SQL
Native
Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;Encrypt=yes"
Attach a database file on connect to a local
SQL Server Express instance:
"Driver={SQL
Native Client};Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
- or -
"Driver={SQL
Native
Client};Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Download
the SQL Native Client here >> (the package contains booth the ODBC driver
and the OLE DB provider)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
SQL Native Client OLE DB Provider
Standard security:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;UID=sa;PWD=asdasd;"
Trusted connection:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;"
Equivalents
Integrated
Security=SSPI equals Trusted_Connection=yes
Prompt for username and password:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Provider=SQLNCLI;Server=Aron1;DataBase=pubs;"
Enabling MARS (multiple active result sets):
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;MarsConn=yes"
Equivalents
MarsConn=yes
equals MultipleActiveResultSets=true equals MARS_Connection=yes
Using
MARS with SQL Native Client, by Chris Lee >>
Encrypt data sent over network:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;Encrypt=yes"
Attach a database file on connect to a local
SQL Server Express instance:
"Provider=SQLNCLI;Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
- or -
"Provider=SQLNCLI;Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Download
the SQL Native Client here >> (the package contains booth the ODBC driver
and the OLE DB provider)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
SqlConnection (.NET)
Standard Security:
"Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
- or -
"Server=Aron1;Database=pubs;User
ID=sa;Password=asdasd;Trusted_Connection=False"
(both connection strings produces the same
result)
Trusted Connection:
"Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
- or -
"Server=Aron1;Database=pubs;Trusted_Connection=True;"
(both connection strings produces the same
result)
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance)
Connect via an IP address:
"Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
Enabling MARS (multiple active result sets):
"Server=Aron1;Database=pubs;Trusted_Connection=True;MultipleActiveResultSets=true"
Note! Use
ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor
ADO.NET 1.1
Streamline
your Data Connections by Moving to MARS, by Laurence Moroney, DevX.com >>
Attach a database file on connect to a local
SQL Server Express instance:
"Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Database=dbname;Trusted_Connection=Yes;"
- or -
"Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Using "User Instance" on a local SQL
Server Express instance:
"Data
Source=./SQLExpress;integrated
security=true;attachdbfilename=|DataDirectory|/mydb.mdf;user
instance=true;"
The
"User Instance" functionality creates a new SQL Server instance on
the fly during connect. This works only on a local SQL Server 2005 instance and
only when connecting using windows authentication over local named pipes. The
purpose is to be able to create a full rights SQL Server instance to a user
with limited administrative rights on the computer. To enable the
functionality: sp_configure 'user instances enabled','1' (0 to disable)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
Context Connection - connecting to
"self" from within your CLR stored prodedure/function
C#:
using(SqlConnection
connection = new SqlConnection("context connection=true"))
{
connection.Open();
// Use the connection
}
Visual Basic:
Using
connection as new SqlConnection("context connection=true")
connection.Open()
' Use the connection
End Using
The
context connection lets you execute Transact-SQL statements in the same context
(connection) that your code was invoked in the first place.
Read more
When to use SQL Native Client?
.Net applications
Do not
use the SQL Native Client. Use the .NET Framework Data Provider for SQL Server
(SqlConnection).
COM applications, all other then .Net
applications
Use the
SQL Native Client if you are accessing an SQL Server 2005 and need the new
features of SQL Server 2005 such as MARS, encryption, xml data type etc.
Continue use your current provider (OLE DB / ODBC through the MDAC package) if
you are not connecting to an SQL Server 2005 (that's quite obvious eh..) or if
you are connecting to an SQL Server 2005 but are not using any of the new SQL
Server 2005 features.
For more
details on the differences between MDAC and SQL Native Client, read this msdn
article >>
Access
ODBC
Standard Security:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;Uid=Admin;Pwd=;"
Workgroup:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;SystemDB=C:/mydatabase.mdw;"
Exclusive:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;Exclusive=1;Uid=admin;Pwd="
OLE DB, OleDbConnection (.NET)
Standard security:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;User Id=admin;Password=;"
Workgroup (system database):
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;Jet OLEDB:System Database=system.mdw;"
With password:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;Jet OLEDB:Database Password=MyDbPassword;"
MySQL
MyODBC
MyODBC 2.50 Local database:
"Driver={mySQL};Server=localhost;Option=16834;Database=mydatabase;"
MyODBC 2.50 Remote database:
"Driver={mySQL};Server=data.domain.com;Port=3306;Option=131072;Stmt=;Database=my-database;Uid=username;Pwd=password;"
MyODBC 3.51 Local database:
"DRIVER={MySQL
ODBC 3.51 Driver};SERVER=localhost;DATABASE=myDatabase;USER=myUsername;PASSWORD=myPassword;OPTION=3;"
MyODBC 3.51 Remote database:
"DRIVER={MySQL
ODBC 3.51 Driver};SERVER=data.domain.com;PORT=3306;DATABASE=myDatabase;
USER=myUsername;PASSWORD=myPassword;OPTION=3;"
OLE DB, OleDbConnection (.NET)
Standard:
"Provider=MySQLProv;Data
Source=mydb;User Id=UserName;Password=asdasd;"
Connector/Net 1.0 (.NET)
Standard:
"Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;"
Download
the driver at MySQL Developer Zone.
Specifying port:
"Server=Server;Port=1234;Database=Test;Uid=UserName;Pwd=asdasd;"
Default
port is 3306. Enter value -1 to use a named pipe connection.
Declare the MySqlClient connection:
C#:
using
MySql.Data.MySqlClient;
MySqlConnection
oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString
= "Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;";
oMySqlConn.Open();
VB.NET:
Imports
MySql.Data.MySqlClient
Dim
oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString
= "Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;"
oMySqlConn.Open()
MySqlConnection (.NET)
eInfoDesigns.dbProvider:
"Data
Source=server;Database=mydb;User ID=username;Password=pwd;Command
Logging=false"
This one
is used with eInfoDesigns dbProvider, an add-on to .NET
Declare the MySqlConnection:
C#:
using
eInfoDesigns.dbProvider.MySqlClient;
MySqlConnection
oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString
= "my connection string";
oMySqlConn.Open();
VB.NET:
Imports
eInfoDesigns.dbProvider.MySqlClient
Dim
oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString
= "my connection string"
oMySqlConn.Open()
SevenObjects MySqlClient (.NET)
Standard:
"Host=server;
UserName=myusername; Password=mypassword;Database=mydb;"
This is a
freeware ADO.Net data provider from SevenObjects
Core Labs MySQLDirect (.NET)
Standard:
"User
ID=root; Password=pwd; Host=localhost; Port=3306; Database=test;Direct=true;
Protocol=TCP; Compress=false; Pooling=true; Min Pool Size=0;Max Pool Size=100;
Connection Lifetime=0"
Read more
at Core Lab and the product page.
Interbase
ODBC, Easysoft
Local computer:
"Driver={Easysoft
IB6
ODBC};Server=localhost;Database=localhost:C:/mydatabase.gdb;Uid=username;Pwd=password"
Remote Computer:
"Driver={Easysoft
IB6
ODBC};Server=ComputerName;Database=ComputerName:C:/mydatabase.gdb;Uid=username;Pwd=password"
Read more
about this driver: Easysoft ODBC-Interbase driver >>
ODBC, Intersolv
Local computer:
"Driver={INTERSOLV
InterBase ODBC Driver
(*.gdb)};Server=localhost;Database=localhost:C:/mydatabase.gdb;Uid=username;Pwd=password"
Remote Computer:
"Driver={INTERSOLV
InterBase ODBC Driver
(*.gdb)};Server=ComputerName;Database=ComputerName:C:/mydatabase.gdb;Uid=username;Pwd=password"
This
driver are provided by DataDirect Technologies >> (formerly Intersolv)
OLE DB, SIBPROvider
Standard:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user id=SYSDBA;password=masterkey"
Specifying character set:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user id=SYSDBA;password=masterkey;character
set=ISO8859_1"
Specifying role:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user
id=SYSDBA;password=masterkey;role=DIGITADORES"
Read more
about SIBPROvider >>
Read more
about connecting to Interbase in this Borland Developer Network article http://community.borland.com/article/0,1410,27152,00.html
IBM DB2
OLE DB, OleDbConnection (.NET) from ms
TCP/IP:
"Provider=DB2OLEDB;Network
Transport Library=TCPIP;Network Address=XXX.XXX.XXX.XXX;Initial
Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User
ID=MyUser;Password=MyPW"
APPC:
"Provider=DB2OLEDB;APPC
Local LU Alias=MyAlias;APPC Remote LU Alias=MyRemote;Initial
Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User
ID=MyUser;Password=MyPW"
IBM's OLE DB Provider (shipped with IBM DB2
UDB v7 or above)
TCP/IP:
Provider=IBMDADB2;Database=sample;HOSTNAME=db2host;PROTOCOL=TCPIP;PORT=50000;uid=myUserName;pwd=myPwd;
ODBC
Standard:
"driver={IBM
DB2 ODBC
DRIVER};Database=myDbName;hostname=myServerName;port=myPortNum;protocol=TCPIP;
uid=myUserName; pwd=myPwd"
Sybase
ODBC
Standard Sybase System 12 (or 12.5) Enterprise Open Client:
"Driver={SYBASE
ASE ODBC Driver};Srvr=Aron1;Uid=username;Pwd=password"
Standard Sybase System 11:
"Driver={SYBASE
SYSTEM 11};Srvr=Aron1;Uid=username;Pwd=password;Database=mydb"
For more
information check out the Adaptive Server Enterprise
Document Sets
Intersolv 3.10:
"Driver={INTERSOLV
3.10 32-BIT Sybase};Srvr=Aron1;Uid=username;Pwd=password;"
Sybase SQL Anywhere (former Watcom SQL ODBC
driver):
"ODBC;
Driver=Sybase SQL Anywhere 5.0;
DefaultDir=c:/dbfolder/;Dbf=c:/mydatabase.db;Uid=username;Pwd=password;Dsn="""""
Note! The
two double quota following the DSN parameter at the end are escaped quotas (VB
syntax), you may have to change this to your language specific escape syntax.
The empty DSN parameter is indeed critical as not including it will result in
error 7778.
Read more
in the Sybase SQL Anywhere User Guide (see part 3, chapter 13) >>
OLE DB
Adaptive Server Anywhere (ASA):
"Provider=ASAProv;Data
source=myASA"
Read more
in the ASA User Guide (part 1, chapter 2) >>
Adaptive Server Enterprise (ASE) with Data
Source .IDS file:
"Provider=Sybase
ASE OLE DB Provider; Data source=myASE"
Note that
you must create a Data Source .IDS file using the Sybase Data Administrator.
These .IDS files resemble ODBC DSNs.
Adaptive Server Enterprise (ASE):
"Provider=Sybase.ASEOLEDBProvider;Srvr=myASEserver,5000;Catalog=myDBname;User
Id=username;Password=password"
- some reports on problem using the above
one, try the following as an alternative -
"Provider=Sybase.ASEOLEDBProvider;Server
Name=myASEserver,5000;Initial Catalog=myDBname;User
Id=username;Password=password"
This one
works only from Open Client 12.5 where the server port number feature
works,?allowing fully qualified connection strings to be used without
defining?any .IDS Data Source files.
AseConnection (.NET)
Standard:
"Data
Source='myASEserver';Port=5000;Database='myDBname';UID='username';PWD='password';"
Declare the AseConnection:
C#:
using Sybase.Data.AseClient;
AseConnection
oCon = new AseConnection();
oCon.ConnectionString="my
connection string";
oCon.Open();
VB.NET:
Imports
System.Data.AseClient
Dim oCon
As AseConnection = New AseConnection()
oCon.ConnectionString="my
connection string"
oCon.Open()
Read
more! Adaptive Server Enterprise
ADO.NET Data Provider Documentation >>
Informix
ODBC
Informix 3.30:
"Dsn='';Driver={INFORMIX
3.30 32
BIT};Host=hostname;Server=myserver;Service=service-name;Protocol=olsoctcp;Database=mydb;UID=username;PWD=myPwd
Informix-CLI 2.5:
"Driver={Informix-CLI
2.5 (32 Bit)};Server=myserver;Database=mydb;Uid=username;Pwd=myPwd"
OLE DB
IBM Informix OLE DB Provider:
"Provider=Ifxoledbc.2;password=myPw;User
ID=myUser;Data Source=dbName@serverName;Persist Security Info=true"
Ingres
ODBC
DSN-less
"Provider=MSDASQL.1;DRIVER=Ingres;SRVR=xxxxx;DB=xxxxx;Persist
Security Info=False;uid=xxxx;pwd=xxxxx;SELECTLOOPS=N;Extended
Properties="""SERVER=xxxxx;DATABASE=xxxxx;SERVERTYPE=INGRES""
Mimer SQL
ODBC
Standard Security:
"Driver={MIMER};Database=mydb;Uid=myuser;Pwd=mypw;"
Prompt for username and password:
"Driver={MIMER};Database=mydb;"
Lightbase
Standard
Standard:
"user=USERLOGIN;password=PASSWORD;UDB=USERBASE;server=SERVERNAME"
PostgreSQL
Core Labs PostgreSQLDirect (.NET)
Standard:
"User
ID=root; Password=pwd; Host=localhost; Port=5432; Database=testdb;Pooling=true;
Min Pool Size=0; Max Pool Size=100; Connection Lifetime=0"
Read more
at Core Lab and the product page.
PostgreSQL driver
Standard:
"DRIVER={PostgreSQL};SERVER=ipaddress;port=5432;DATABASE=dbname;UID=username;PWD=password;"
Npgsql by pgFoundry (.NET)
SSL activated:
"Server=127.0.0.1;Port=5432;Userid=myuserid;password=mypw;Protocol=3;SSL=true;Pooling=true;MinPoolSize=3;MaxPoolSize=20;Encoding=UNICODE;Timeout=20;SslMode=Require"
Without SSL:
"Server=127.0.0.1;Port=5432;Userid=myuserid;password=mypw;Protocol=3;SSL=false;Pooling=true;MinPoolSize=1;MaxPoolSize=20;Encoding=UNICODE;Timeout=15;SslMode=Disable"
Read more
in the Npgsql: User's Manual and on the pgFoundry website.
Paradox
ODBC
5.X:
Driver={Microsoft
Paradox Driver (*.db )};DriverID=538;Fil=Paradox
5.X;DefaultDir=c:/pathToDb/;Dbq=c:/pathToDb/;CollatingSequence=ASCII"
7.X:
"Provider=MSDASQL.1;Persist
Security Info=False;Mode=Read;Extended
Properties='DSN=Paradox;DBQ=C:/myDb;DefaultDir=C:/myDb;DriverId=538;FIL=Paradox
7.X;MaxBufferSize=2048;PageTimeout=600;';Initial Catalog=C:/myDb"
OleDbConnection (.NET)
Standard
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/myDb;Extended Properties=Paradox 5.x;"
MS
kb-article: How to use Paradox data with Access and Jet >>
DSN
ODBC
DSN:
"DSN=myDsn;Uid=username;Pwd=;"
File DSN:
"FILEDSN=c:/myData.dsn;Uid=username;Pwd=;"
Firebird
ODBC - IBPhoenix Open Source
Standard:
"DRIVER=Firebird/InterBase(r)
driver;UID=SYSDBA;PWD=masterkey;DBNAME=D:/FIREBIRD/examples/TEST.FDB"
IBPhoenix
ODBC; More info, download etc >>
.NET - Firebird .Net Data Provider
Standard:
"User=SYSDBA;Password=masterkey;Database=SampleDatabase.fdb;DataSource=localhost;Port=3050;Dialect=3;Charset=NONE;Role=;Connection
lifetime=15;Pooling=true;MinPoolSize=0;MaxPoolSize=50;Packet
Size=8192;ServerType=0"
Firebird
ADO.NET project >>
Firebird
ADO.NET downloads >>
Excel
ODBC
Standard:
"Driver={Microsoft
Excel Driver
(*.xls)};DriverId=790;Dbq=C:/MyExcel.xls;DefaultDir=c:/mypath;"
TIP! SQL
syntax: "SELECT * FROM [sheet1$]" - i.e. worksheet name followed by a
"$" and wrapped in "[" "]" brackets.
OLE DB
Standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:/MyExcel.xls;Extended Properties=""Excel
8.0;HDR=Yes;IMEX=1"""
"HDR=Yes;"
indicates that the first row contains columnnames, not data
"IMEX=1;"
tells the driver to always read "intermixed" data columns as text
TIP! SQL
syntax: "SELECT * FROM [sheet1$]" - i.e. worksheet name followed by a
"$" and wrapped in "[" "]" brackets.
Text
ODBC
Standard:
"Driver={Microsoft
Text Driver (*.txt; *.csv)};Dbq=c:/txtFilesFolder/;Extensions=asc,csv,tab,txt;"
OLE DB
Standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/txtFilesFolder/;Extended
Properties=""text;HDR=Yes;FMT=Delimited"""
"HDR=Yes;"
indicates that the first row contains columnnames, not data
DBF / FoxPro
ODBC
standard:
"Driver={Microsoft
dBASE Driver (*.dbf)};DriverID=277;Dbq=c:/mydbpath;"
OLE DB, OleDbConnection (.NET)
standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/folder;Extended Properties=dBASE IV;User ID=Admin;Password="
AS/400 (iSeries)
OLE DB, OleDbConnection (.NET)
IBM Client Access OLE DB provider:
"PROVIDER=IBMDA400;
DATA SOURCE=MY_SYSTEM_NAME;USER ID=myUserName;PASSWORD=myPwd"
Where
MY_SYSTEM_NAME is the name given to the system connection in
OperationsNavigator
IBM Client Access OLE DB provider:
"PROVIDER=IBMDA400;
DATA SOURCE=MY_SYSTEM_NAME;USER ID=myUserName;PASSWORD=myPwd;DEFAULT
COLLECTION=MY_LIBRARY;"
Where
MY_SYSTEM_NAME is the name given to the System Connection, and MY_LIBRARY is
the name given to the library in iSeries Navigator.
ODBC
IBM Client Access ODBC driver:
"Driver={Client
Access ODBC Driver
(32-bit)};System=my_system_name;Uid=myUserName;Pwd=myPwd"
Exchange
OLE DB
Exchange OLE DB provider:
"ExOLEDB.DataSource"
Specify
store in the connection open command like this: conn.open
"http://servername/mypublicstore"
Check out
this article at msdn >> and this one at Addison-Wesley >>
Visual FoxPro
OLE DB, OleDbConnection (.NET)
Database container (.DBC):
"Provider=vfpoledb.1;Data
Source=C:/MyDbFolder/MyDbContainer.dbc;Collating Sequence=machine"
Free table directory:
"Provider=vfpoledb.1;Data
Source=C:/MyDataDirectory/;Collating Sequence=general"
Force the provider to use an ODBC DSN:
""Provider=vfpoledb.1;DSN=MyDSN""
Read more
(Microsoft msdn) >>
ODBC
Database container (.DBC):
"Driver={Microsoft
Visual FoxPro
Driver};SourceType=DBC;SourceDB=c:/myvfpdb.dbc;Exclusive=No;NULL=NO;Collate=Machine;BACKGROUNDFETCH=NO;DELETED=NO"
Free Table directory:
"Driver={Microsoft
Visual FoxPro
Driver};SourceType=DBF;SourceDB=c:/myvfpdbfolder;Exclusive=No;Collate=Machine;NULL=NO;DELETED=NO;BACKGROUNDFETCH=NO"
"Collate=Machine"
is the default setting, for other settings check the list of supported
collating sequences >>
Microsoft
Visual Foxpro site: http://msdn.microsoft.com/vfoxpro
Pervasive
ODBC
Standard:
"Driver={Pervasive
ODBC Client Interface};ServerName=srvname;dbq=@dbname"
Pervasive
ODBC info >>
OLE DB
Standard:
"Provider=PervasiveOLEDB;Data
Source=C:/path"
Pervasive
OLE DB info >>
UDL
UDL
UDL:
"File
Name=c:/myDataLink.udl;"
Oracle
ODBC
New version:
"Driver={Microsoft
ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;"
Old version:
"Driver={Microsoft
ODBC Driver for Oracle}; ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;"
OLE DB, OleDbConnection (.NET)
Standard security:
"Provider=msdaora;Data
Source=MyOracleDB;User Id=UserName;Password=asdasd;"
This
one's from Microsoft, the following are from Oracle
Standard Security:
"Provider=OraOLEDB.Oracle;Data
Source=MyOracleDB;User Id=Username;Password=asdasd;"
Trusted Connection:
"Provider=OraOLEDB.Oracle;Data
Source=MyOracleDB;OSAuthent=1;"
OracleConnection (.NET)
Standard:
"Data
Source=MyOracleDB;Integrated Security=yes;"
This one
works only with Oracle 8i release 3 or later
Specifying username and password:
"Data
Source=MyOracleDB;User Id=username;Password=passwd;Integrated
Security=no;"
This one
works only with Oracle 8i release 3 or later
Declare the OracleConnection:
C#:
using
System.Data.OracleClient;
OracleConnection
oOracleConn = new OracleConnection();
oOracleConn.ConnectionString
= "my connection string";
oOracleConn.Open();
VB.NET:
Imports
System.Data.OracleClient
Dim
oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString
= "my connection string"
oOracleConn.Open()
Missing
the System.Data.OracleClient namespace? Download .NET Managed Provider for
Oracle >>
Great
article! "Features of Oracle Data Provider for .NET" by Rama Mohan G.
at C# Corner
Core Labs OraDirect (.NET)
Standard:
"User
ID=scott; Password=tiger; Host=ora; Pooling=true; Min Pool Size=0;Max Pool
Size=100; Connection Lifetime=0"
Read more
at Core Lab and the product page.
Data Shape
MS Data Shape:
"Provider=MSDataShape.1;Persist
Security Info=False;Data Provider=MSDAORA;Data Source=orac;user
id=username;password=mypw"
Want to
learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping
>>
SQL Server
ODBC
Standard Security:
"Driver={SQL
Server};Server=Aron1;Database=pubs;Uid=sa;Pwd=asdasd;"
Trusted connection:
"Driver={SQL
Server};Server=Aron1;Database=pubs;Trusted_Connection=yes;"
PRompt for username and passWord:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Driver={SQL Server};Server=Aron1;DataBase=pubs;"
OLE DB, OleDbConnection (.NET)
Standard Security:
"Provider=sqloledb;Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
Trusted Connection:
"Provider=sqloledb;Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance,
only SQLServer2000)
Prompt for username and password:
oConn.Provider
= "sqloledb"
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Data Source=Aron1;Initial Catalog=pubs;"
Connect via an ip address:
"Provider=sqloledb;Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
SqlConnection (.NET)
Standard Security:
"Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
- or -
"Server=Aron1;Database=pubs;User
ID=sa;Password=asdasd;Trusted_Connection=False"
(both connection strings produces the same
result)
Trusted Connection:
"Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
- or -
"Server=Aron1;Database=pubs;Trusted_Connection=True;"
(both connection strings produces the same
result)
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance,
only SQLServer2000)
Connect via an IP address:
"Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
Declare the SqlConnection:
C#:
using
System.Data.SqlClient;
SqlConnection
oSQLConn = new SqlConnection();
oSQLConn.ConnectionString="my
connection string";
oSQLConn.Open();
VB.NET:
Imports
System.Data.SqlClient
Dim
oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString="my
connection string"
oSQLConn.Open()
Data Shape
MS Data Shape
"Provider=MSDataShape;Data
Provider=SQLOLEDB;Data Source=Aron1;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
Want to
learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping
>>
Read more
How to define which network protocol to use
Example:
"Provider=sqloledb;Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
Name
Network library
dbnmpntw
Win32 Named Pipes
dbmssocn
Win32 Winsock TCP/IP
dbmsspxn
Win32 SPX/IPX
dbmsvinn
Win32 Banyan Vines
dbmsrpcn
Win32 Multi-Protocol (Windows RPC)
Important
note!
When
connecting through the SQLOLEDB provider use the syntax Network
Library=dbmssocn
and when
connecting through MSDASQL provider use the syntax Network=dbmssocn
All SqlConnection connection string properties
This
table shows all connection string properties for the ADO.NET SqlConnection
object. Most of the properties are also used in ADO. All properties and descriptions is from
msdn.
Name
Default Description
application
Name The name of the application, or
'.Net SqlClient Data Provider' if no application name is provided.
AttachDBFilename
-or-
extended
properties
-or-
Initial
File Name The name of the primary file,
including the full path name, of an attachable database. The database name must
be specified with the keyword 'database'.
Connect
Timeout
-or-
Connection
Timeout 15 The length of time (in seconds) to wait for a connection to the
server before terminating the attempt and generating an error.
Connection
Lifetime 0 When a connection is returned to the pool, its creation time is
compared with the current time, and the connection is destroyed if that time
span (in seconds) exceeds the value specified by connection lifetime. Useful in
clustered configurations to force load balancing between a running server and a
server just brought on-line.
Connection
Reset 'true' Determines whether the database connection is reset when being
removed from the pool. Setting to 'false' avoids making an additional server
round-trip when obtaining a connection, but the programmer must be aware that
the connection state is not being reset.
Current
Language The SQL Server Language record
name.
Data
Source
-or-
Server
-or-
Address
-or-
Addr
-or-
Network
Address The name or network address of
the instance of SQL Server to which to connect.
Enlist
'true' When true, the pooler automatically enlists the connection in the
creation thread's current transaction context.
Initial
Catalog
-or-
Database The name of the database.
Integrated
Security
-or-
Trusted_Connection
'false' Whether the connection is to be a secure connection or not. Recognized
values are 'true', 'false', and 'sspi', which is equivalent to 'true'.
Max Pool
Size 100 The maximum number of connections allowed in the pool.
Min Pool
Size 0 The minimum number of connections allowed in the pool.
Network
Library
-or-
Net
'dbmssocn' The network library used to establish a connection to an instance of
SQL Server. Supported values include dbnmpntw (Named Pipes), dbmsrpcn
(Multiprotocol), dbmsadsn (Apple Talk), dbmsgnet (VIA), dbmsipcn (Shared
Memory) and dbmsspxn (IPX/SPX), and dbmssocn (TCP/IP).
The
corresponding network DLL must be installed on the system to which you connect.
If you do not specify a network and you use a local server (for example,
"." or "(local)"), shared memory is used.
Packet
Size 8192 Size in bytes of the network packets used to communicate with an
instance of SQL Server.
Password
-or-
Pwd The password for the SQL Server account
logging on.
Persist
Security Info 'false' When set to 'false', security-sensitive information, such
as the password, is not returned as part of the connection if the connection is
open or has ever been in an open state. Resetting the connection string resets
all connection string values including the password.
Pooling
'true' When true, the SQLConnection object is drawn from the appropriate pool,
or if necessary, is created and added to the appropriate pool.
User
ID The SQL Server login account.
Workstation
ID the local computer name The name of the workstation connecting to SQL
Server.
Note
Use ; to
separate each property.
If a name
occurs more than once, the value from the last one in the connection string
will be used.
If you
are building your connection string in your app using values from user input
fields, make sure the user can't change the connection string by inserting an
additional property with another value within the user value.
SQL Server 2005
SQL Native Client ODBC Driver
Standard security:
"Driver={SQL
Native Client};Server=Aron1;Database=pubs;UID=sa;PWD=asdasd;"
Trusted connection:
"Driver={SQL
Native Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;"
Equivalents
Integrated
Security=SSPI equals Trusted_Connection=yes
Prompt for username and password:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Driver={SQL Native Client};Server=Aron1;DataBase=pubs;"
Enabling MARS (multiple active result sets):
"Driver={SQL
Native
Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;MARS_Connection=yes"
Equivalents
MultipleActiveResultSets=true
equals MARS_Connection=yes
Using
MARS with SQL Native Client, by Chris Lee >>
Encrypt data sent over network:
"Driver={SQL
Native
Client};Server=Aron1;Database=pubs;Trusted_Connection=yes;Encrypt=yes"
Attach a database file on connect to a local
SQL Server Express instance:
"Driver={SQL
Native Client};Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
- or -
"Driver={SQL
Native
Client};Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Download
the SQL Native Client here >> (the package contains booth the ODBC driver
and the OLE DB provider)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
SQL Native Client OLE DB Provider
Standard security:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;UID=sa;PWD=asdasd;"
Trusted connection:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;"
Equivalents
Integrated
Security=SSPI equals Trusted_Connection=yes
Prompt for username and password:
oConn.Properties("Prompt")
= adPromptAlways
oConn.Open
"Provider=SQLNCLI;Server=Aron1;DataBase=pubs;"
Enabling MARS (multiple active result sets):
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;MarsConn=yes"
Equivalents
MarsConn=yes
equals MultipleActiveResultSets=true equals MARS_Connection=yes
Using
MARS with SQL Native Client, by Chris Lee >>
Encrypt data sent over network:
"Provider=SQLNCLI;Server=Aron1;Database=pubs;Trusted_Connection=yes;Encrypt=yes"
Attach a database file on connect to a local
SQL Server Express instance:
"Provider=SQLNCLI;Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
- or -
"Provider=SQLNCLI;Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Download
the SQL Native Client here >> (the package contains booth the ODBC driver
and the OLE DB provider)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
SqlConnection (.NET)
Standard Security:
"Data
Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
- or -
"Server=Aron1;Database=pubs;User
ID=sa;Password=asdasd;Trusted_Connection=False"
(both connection strings produces the same
result)
Trusted Connection:
"Data
Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
- or -
"Server=Aron1;Database=pubs;Trusted_Connection=True;"
(both connection strings produces the same
result)
(use
serverName/instanceName as Data Source to use an specifik SQLServer instance)
Connect via an IP address:
"Data
Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User
ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP
instead of Named Pipes, at the end of the Data Source is the port to use (1433
is the default))
Enabling MARS (multiple active result sets):
"Server=Aron1;Database=pubs;Trusted_Connection=True;MultipleActiveResultSets=true"
Note! Use
ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor
ADO.NET 1.1
Streamline
your Data Connections by Moving to MARS, by Laurence Moroney, DevX.com >>
Attach a database file on connect to a local
SQL Server Express instance:
"Server=./SQLExpress;AttachDbFilename=c:/asd/qwe/mydbfile.mdf;Database=dbname;Database=dbname;Trusted_Connection=Yes;"
- or -
"Server=./SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;Trusted_Connection=Yes;"
(use |DataDirectory| when your database file
resides in the data directory)
Why is
the "Database" parameter needed? Answer: If the database was
previously attached, SQL Server does not reattach it (it uses the attached
database as the default for the connection).
Using "User Instance" on a local SQL
Server Express instance:
"Data
Source=./SQLExpress;integrated
security=true;attachdbfilename=|DataDirectory|/mydb.mdf;user
instance=true;"
The
"User Instance" functionality creates a new SQL Server instance on
the fly during connect. This works only on a local SQL Server 2005 instance and
only when connecting using windows authentication over local named pipes. The
purpose is to be able to create a full rights SQL Server instance to a user
with limited administrative rights on the computer. To enable the
functionality: sp_configure 'user instances enabled','1' (0 to disable)
Using SQL
Server 2005 Express? Don't miss the server name syntax: SERVERNAME/SQLEXPRESS
(Substitute "SERVERNAME" with the name of the computer)
Context Connection - connecting to
"self" from within your CLR stored prodedure/function
C#:
using(SqlConnection
connection = new SqlConnection("context connection=true"))
{
connection.Open();
// Use the connection
}
Visual Basic:
Using
connection as new SqlConnection("context connection=true")
connection.Open()
' Use the connection
End Using
The
context connection lets you execute Transact-SQL statements in the same context
(connection) that your code was invoked in the first place.
Read more
When to use SQL Native Client?
.Net applications
Do not
use the SQL Native Client. Use the .NET Framework Data Provider for SQL Server
(SqlConnection).
COM applications, all other then .Net
applications
Use the
SQL Native Client if you are accessing an SQL Server 2005 and need the new
features of SQL Server 2005 such as MARS, encryption, xml data type etc.
Continue use your current provider (OLE DB / ODBC through the MDAC package) if
you are not connecting to an SQL Server 2005 (that's quite obvious eh..) or if
you are connecting to an SQL Server 2005 but are not using any of the new SQL
Server 2005 features.
For more
details on the differences between MDAC and SQL Native Client, read this msdn
article >>
Access
ODBC
Standard Security:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;Uid=Admin;Pwd=;"
Workgroup:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;SystemDB=C:/mydatabase.mdw;"
Exclusive:
"Driver={Microsoft
Access Driver (*.mdb)};Dbq=C:/mydatabase.mdb;Exclusive=1;Uid=admin;Pwd="
OLE DB, OleDbConnection (.NET)
Standard security:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;User Id=admin;Password=;"
Workgroup (system database):
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;Jet OLEDB:System Database=system.mdw;"
With password:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=/somepath/mydb.mdb;Jet OLEDB:Database Password=MyDbPassword;"
MySQL
MyODBC
MyODBC 2.50 Local database:
"Driver={mySQL};Server=localhost;Option=16834;Database=mydatabase;"
MyODBC 2.50 Remote database:
"Driver={mySQL};Server=data.domain.com;Port=3306;Option=131072;Stmt=;Database=my-database;Uid=username;Pwd=password;"
MyODBC 3.51 Local database:
"DRIVER={MySQL
ODBC 3.51 Driver};SERVER=localhost;DATABASE=myDatabase;USER=myUsername;PASSWORD=myPassword;OPTION=3;"
MyODBC 3.51 Remote database:
"DRIVER={MySQL
ODBC 3.51 Driver};SERVER=data.domain.com;PORT=3306;DATABASE=myDatabase;
USER=myUsername;PASSWORD=myPassword;OPTION=3;"
OLE DB, OleDbConnection (.NET)
Standard:
"Provider=MySQLProv;Data
Source=mydb;User Id=UserName;Password=asdasd;"
Connector/Net 1.0 (.NET)
Standard:
"Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;"
Download
the driver at MySQL Developer Zone.
Specifying port:
"Server=Server;Port=1234;Database=Test;Uid=UserName;Pwd=asdasd;"
Default
port is 3306. Enter value -1 to use a named pipe connection.
Declare the MySqlClient connection:
C#:
using
MySql.Data.MySqlClient;
MySqlConnection
oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString
= "Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;";
oMySqlConn.Open();
VB.NET:
Imports
MySql.Data.MySqlClient
Dim
oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString
= "Server=Server;Database=Test;Uid=UserName;Pwd=asdasd;"
oMySqlConn.Open()
MySqlConnection (.NET)
eInfoDesigns.dbProvider:
"Data
Source=server;Database=mydb;User ID=username;Password=pwd;Command
Logging=false"
This one
is used with eInfoDesigns dbProvider, an add-on to .NET
Declare the MySqlConnection:
C#:
using
eInfoDesigns.dbProvider.MySqlClient;
MySqlConnection
oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString
= "my connection string";
oMySqlConn.Open();
VB.NET:
Imports
eInfoDesigns.dbProvider.MySqlClient
Dim
oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString
= "my connection string"
oMySqlConn.Open()
SevenObjects MySqlClient (.NET)
Standard:
"Host=server;
UserName=myusername; Password=mypassword;Database=mydb;"
This is a
freeware ADO.Net data provider from SevenObjects
Core Labs MySQLDirect (.NET)
Standard:
"User
ID=root; Password=pwd; Host=localhost; Port=3306; Database=test;Direct=true;
Protocol=TCP; Compress=false; Pooling=true; Min Pool Size=0;Max Pool Size=100;
Connection Lifetime=0"
Read more
at Core Lab and the product page.
Interbase
ODBC, Easysoft
Local computer:
"Driver={Easysoft
IB6
ODBC};Server=localhost;Database=localhost:C:/mydatabase.gdb;Uid=username;Pwd=password"
Remote Computer:
"Driver={Easysoft
IB6
ODBC};Server=ComputerName;Database=ComputerName:C:/mydatabase.gdb;Uid=username;Pwd=password"
Read more
about this driver: Easysoft ODBC-Interbase driver >>
ODBC, Intersolv
Local computer:
"Driver={INTERSOLV
InterBase ODBC Driver
(*.gdb)};Server=localhost;Database=localhost:C:/mydatabase.gdb;Uid=username;Pwd=password"
Remote Computer:
"Driver={INTERSOLV
InterBase ODBC Driver
(*.gdb)};Server=ComputerName;Database=ComputerName:C:/mydatabase.gdb;Uid=username;Pwd=password"
This
driver are provided by DataDirect Technologies >> (formerly Intersolv)
OLE DB, SIBPROvider
Standard:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user id=SYSDBA;password=masterkey"
Specifying character set:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user id=SYSDBA;password=masterkey;character
set=ISO8859_1"
Specifying role:
"provider=sibprovider;location=localhost:;data
source=c:/databases/gdbs/mygdb.gdb;user
id=SYSDBA;password=masterkey;role=DIGITADORES"
Read more
about SIBPROvider >>
Read more
about connecting to Interbase in this Borland Developer Network article http://community.borland.com/article/0,1410,27152,00.html
IBM DB2
OLE DB, OleDbConnection (.NET) from ms
TCP/IP:
"Provider=DB2OLEDB;Network
Transport Library=TCPIP;Network Address=XXX.XXX.XXX.XXX;Initial
Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User
ID=MyUser;Password=MyPW"
APPC:
"Provider=DB2OLEDB;APPC
Local LU Alias=MyAlias;APPC Remote LU Alias=MyRemote;Initial
Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User
ID=MyUser;Password=MyPW"
IBM's OLE DB Provider (shipped with IBM DB2
UDB v7 or above)
TCP/IP:
Provider=IBMDADB2;Database=sample;HOSTNAME=db2host;PROTOCOL=TCPIP;PORT=50000;uid=myUserName;pwd=myPwd;
ODBC
Standard:
"driver={IBM
DB2 ODBC
DRIVER};Database=myDbName;hostname=myServerName;port=myPortNum;protocol=TCPIP;
uid=myUserName; pwd=myPwd"
Sybase
ODBC
Standard Sybase System 12 (or 12.5) Enterprise Open Client:
"Driver={SYBASE
ASE ODBC Driver};Srvr=Aron1;Uid=username;Pwd=password"
Standard Sybase System 11:
"Driver={SYBASE
SYSTEM 11};Srvr=Aron1;Uid=username;Pwd=password;Database=mydb"
For more
information check out the Adaptive Server Enterprise
Document Sets
Intersolv 3.10:
"Driver={INTERSOLV
3.10 32-BIT Sybase};Srvr=Aron1;Uid=username;Pwd=password;"
Sybase SQL Anywhere (former Watcom SQL ODBC
driver):
"ODBC;
Driver=Sybase SQL Anywhere 5.0;
DefaultDir=c:/dbfolder/;Dbf=c:/mydatabase.db;Uid=username;Pwd=password;Dsn="""""
Note! The
two double quota following the DSN parameter at the end are escaped quotas (VB
syntax), you may have to change this to your language specific escape syntax.
The empty DSN parameter is indeed critical as not including it will result in
error 7778.
Read more
in the Sybase SQL Anywhere User Guide (see part 3, chapter 13) >>
OLE DB
Adaptive Server Anywhere (ASA):
"Provider=ASAProv;Data
source=myASA"
Read more
in the ASA User Guide (part 1, chapter 2) >>
Adaptive Server Enterprise (ASE) with Data
Source .IDS file:
"Provider=Sybase
ASE OLE DB Provider; Data source=myASE"
Note that
you must create a Data Source .IDS file using the Sybase Data Administrator.
These .IDS files resemble ODBC DSNs.
Adaptive Server Enterprise (ASE):
"Provider=Sybase.ASEOLEDBProvider;Srvr=myASEserver,5000;Catalog=myDBname;User
Id=username;Password=password"
- some reports on problem using the above
one, try the following as an alternative -
"Provider=Sybase.ASEOLEDBProvider;Server
Name=myASEserver,5000;Initial Catalog=myDBname;User
Id=username;Password=password"
This one
works only from Open Client 12.5 where the server port number feature
works,?allowing fully qualified connection strings to be used without
defining?any .IDS Data Source files.
AseConnection (.NET)
Standard:
"Data
Source='myASEserver';Port=5000;Database='myDBname';UID='username';PWD='password';"
Declare the AseConnection:
C#:
using Sybase.Data.AseClient;
AseConnection
oCon = new AseConnection();
oCon.ConnectionString="my
connection string";
oCon.Open();
VB.NET:
Imports
System.Data.AseClient
Dim oCon
As AseConnection = New AseConnection()
oCon.ConnectionString="my
connection string"
oCon.Open()
Read
more! Adaptive Server Enterprise
ADO.NET Data Provider Documentation >>
Informix
ODBC
Informix 3.30:
"Dsn='';Driver={INFORMIX
3.30 32
BIT};Host=hostname;Server=myserver;Service=service-name;Protocol=olsoctcp;Database=mydb;UID=username;PWD=myPwd
Informix-CLI 2.5:
"Driver={Informix-CLI
2.5 (32 Bit)};Server=myserver;Database=mydb;Uid=username;Pwd=myPwd"
OLE DB
IBM Informix OLE DB Provider:
"Provider=Ifxoledbc.2;password=myPw;User
ID=myUser;Data Source=dbName@serverName;Persist Security Info=true"
Ingres
ODBC
DSN-less
"Provider=MSDASQL.1;DRIVER=Ingres;SRVR=xxxxx;DB=xxxxx;Persist
Security Info=False;uid=xxxx;pwd=xxxxx;SELECTLOOPS=N;Extended
Properties="""SERVER=xxxxx;DATABASE=xxxxx;SERVERTYPE=INGRES""
Mimer SQL
ODBC
Standard Security:
"Driver={MIMER};Database=mydb;Uid=myuser;Pwd=mypw;"
Prompt for username and password:
"Driver={MIMER};Database=mydb;"
Lightbase
Standard
Standard:
"user=USERLOGIN;password=PASSWORD;UDB=USERBASE;server=SERVERNAME"
PostgreSQL
Core Labs PostgreSQLDirect (.NET)
Standard:
"User
ID=root; Password=pwd; Host=localhost; Port=5432; Database=testdb;Pooling=true;
Min Pool Size=0; Max Pool Size=100; Connection Lifetime=0"
Read more
at Core Lab and the product page.
PostgreSQL driver
Standard:
"DRIVER={PostgreSQL};SERVER=ipaddress;port=5432;DATABASE=dbname;UID=username;PWD=password;"
Npgsql by pgFoundry (.NET)
SSL activated:
"Server=127.0.0.1;Port=5432;Userid=myuserid;password=mypw;Protocol=3;SSL=true;Pooling=true;MinPoolSize=3;MaxPoolSize=20;Encoding=UNICODE;Timeout=20;SslMode=Require"
Without SSL:
"Server=127.0.0.1;Port=5432;Userid=myuserid;password=mypw;Protocol=3;SSL=false;Pooling=true;MinPoolSize=1;MaxPoolSize=20;Encoding=UNICODE;Timeout=15;SslMode=Disable"
Read more
in the Npgsql: User's Manual and on the pgFoundry website.
Paradox
ODBC
5.X:
Driver={Microsoft
Paradox Driver (*.db )};DriverID=538;Fil=Paradox
5.X;DefaultDir=c:/pathToDb/;Dbq=c:/pathToDb/;CollatingSequence=ASCII"
7.X:
"Provider=MSDASQL.1;Persist
Security Info=False;Mode=Read;Extended
Properties='DSN=Paradox;DBQ=C:/myDb;DefaultDir=C:/myDb;DriverId=538;FIL=Paradox
7.X;MaxBufferSize=2048;PageTimeout=600;';Initial Catalog=C:/myDb"
OleDbConnection (.NET)
Standard
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/myDb;Extended Properties=Paradox 5.x;"
MS
kb-article: How to use Paradox data with Access and Jet >>
DSN
ODBC
DSN:
"DSN=myDsn;Uid=username;Pwd=;"
File DSN:
"FILEDSN=c:/myData.dsn;Uid=username;Pwd=;"
Firebird
ODBC - IBPhoenix Open Source
Standard:
"DRIVER=Firebird/InterBase(r)
driver;UID=SYSDBA;PWD=masterkey;DBNAME=D:/FIREBIRD/examples/TEST.FDB"
IBPhoenix
ODBC; More info, download etc >>
.NET - Firebird .Net Data Provider
Standard:
"User=SYSDBA;Password=masterkey;Database=SampleDatabase.fdb;DataSource=localhost;Port=3050;Dialect=3;Charset=NONE;Role=;Connection
lifetime=15;Pooling=true;MinPoolSize=0;MaxPoolSize=50;Packet
Size=8192;ServerType=0"
Firebird
ADO.NET project >>
Firebird
ADO.NET downloads >>
Excel
ODBC
Standard:
"Driver={Microsoft
Excel Driver
(*.xls)};DriverId=790;Dbq=C:/MyExcel.xls;DefaultDir=c:/mypath;"
TIP! SQL
syntax: "SELECT * FROM [sheet1$]" - i.e. worksheet name followed by a
"$" and wrapped in "[" "]" brackets.
OLE DB
Standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:/MyExcel.xls;Extended Properties=""Excel
8.0;HDR=Yes;IMEX=1"""
"HDR=Yes;"
indicates that the first row contains columnnames, not data
"IMEX=1;"
tells the driver to always read "intermixed" data columns as text
TIP! SQL
syntax: "SELECT * FROM [sheet1$]" - i.e. worksheet name followed by a
"$" and wrapped in "[" "]" brackets.
Text
ODBC
Standard:
"Driver={Microsoft
Text Driver (*.txt; *.csv)};Dbq=c:/txtFilesFolder/;Extensions=asc,csv,tab,txt;"
OLE DB
Standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/txtFilesFolder/;Extended
Properties=""text;HDR=Yes;FMT=Delimited"""
"HDR=Yes;"
indicates that the first row contains columnnames, not data
DBF / FoxPro
ODBC
standard:
"Driver={Microsoft
dBASE Driver (*.dbf)};DriverID=277;Dbq=c:/mydbpath;"
OLE DB, OleDbConnection (.NET)
standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=c:/folder;Extended Properties=dBASE IV;User ID=Admin;Password="
AS/400 (iSeries)
OLE DB, OleDbConnection (.NET)
IBM Client Access OLE DB provider:
"PROVIDER=IBMDA400;
DATA SOURCE=MY_SYSTEM_NAME;USER ID=myUserName;PASSWORD=myPwd"
Where
MY_SYSTEM_NAME is the name given to the system connection in
OperationsNavigator
IBM Client Access OLE DB provider:
"PROVIDER=IBMDA400;
DATA SOURCE=MY_SYSTEM_NAME;USER ID=myUserName;PASSWORD=myPwd;DEFAULT
COLLECTION=MY_LIBRARY;"
Where
MY_SYSTEM_NAME is the name given to the System Connection, and MY_LIBRARY is
the name given to the library in iSeries Navigator.
ODBC
IBM Client Access ODBC driver:
"Driver={Client
Access ODBC Driver
(32-bit)};System=my_system_name;Uid=myUserName;Pwd=myPwd"
Exchange
OLE DB
Exchange OLE DB provider:
"ExOLEDB.DataSource"
Specify
store in the connection open command like this: conn.open
"http://servername/mypublicstore"
Check out
this article at msdn >> and this one at Addison-Wesley >>
Visual FoxPro
OLE DB, OleDbConnection (.NET)
Database container (.DBC):
"Provider=vfpoledb.1;Data
Source=C:/MyDbFolder/MyDbContainer.dbc;Collating Sequence=machine"
Free table directory:
"Provider=vfpoledb.1;Data
Source=C:/MyDataDirectory/;Collating Sequence=general"
Force the provider to use an ODBC DSN:
""Provider=vfpoledb.1;DSN=MyDSN""
Read more
(Microsoft msdn) >>
ODBC
Database container (.DBC):
"Driver={Microsoft
Visual FoxPro
Driver};SourceType=DBC;SourceDB=c:/myvfpdb.dbc;Exclusive=No;NULL=NO;Collate=Machine;BACKGROUNDFETCH=NO;DELETED=NO"
Free Table directory:
"Driver={Microsoft
Visual FoxPro
Driver};SourceType=DBF;SourceDB=c:/myvfpdbfolder;Exclusive=No;Collate=Machine;NULL=NO;DELETED=NO;BACKGROUNDFETCH=NO"
"Collate=Machine"
is the default setting, for other settings check the list of supported
collating sequences >>
Microsoft
Visual Foxpro site: http://msdn.microsoft.com/vfoxpro
Pervasive
ODBC
Standard:
"Driver={Pervasive
ODBC Client Interface};ServerName=srvname;dbq=@dbname"
Pervasive
ODBC info >>
OLE DB
Standard:
"Provider=PervasiveOLEDB;Data
Source=C:/path"
Pervasive
OLE DB info >>
UDL
UDL
UDL:
"File
Name=c:/myDataLink.udl;"
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