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MySQL学习笔记——显示数据库信息

2012-07-28 21:29 633 查看

show privileges

　　显示可用的系统权限清单。　　

View Code

mysql> show privileges;
+-------------------------+---------------------------------------+-------------------------------------------------------+
| Privilege               | Context                               | Comment                                               |
+-------------------------+---------------------------------------+-------------------------------------------------------+
| Alter                   | Tables                                | To alter the table                                    |
| Alter routine           | Functions,Procedures                  | To alter or drop stored functions/procedures          |
| Create                  | Databases,Tables,Indexes              | To create new databases and tables                    |
| Create routine          | Databases                             | To use CREATE FUNCTION/PROCEDURE                      |
| Create temporary tables | Databases                             | To use CREATE TEMPORARY TABLE                         |
| Create view             | Tables                                | To create new views                                   |
| Create user             | Server Admin                          | To create new users                                   |
| Delete                  | Tables                                | To delete existing rows                               |
| Drop                    | Databases,Tables                      | To drop databases, tables, and views                  |
| Event                   | Server Admin                          | To create, alter, drop and execute events             |
| Execute                 | Functions,Procedures                  | To execute stored routines                            |
| File                    | File access on server                 | To read and write files on the server                 |
| Grant option            | Databases,Tables,Functions,Procedures | To give to other users those privileges you possess   |
| Index                   | Tables                                | To create or drop indexes                             |
| Insert                  | Tables                                | To insert data into tables                            |
| Lock tables             | Databases                             | To use LOCK TABLES (together with SELECT privilege)   |
| Process                 | Server Admin                          | To view the plain text of currently executing queries |
| Proxy                   | Server Admin                          | To make proxy user possible                           |
| References              | Databases,Tables                      | To have references on tables                          |
| Reload                  | Server Admin                          | To reload or refresh tables, logs and privileges      |
| Replication client      | Server Admin                          | To ask where the slave or master servers are          |
| Replication slave       | Server Admin                          | To read binary log events from the master             |
| Select                  | Tables                                | To retrieve rows from table                           |
| Show databases          | Server Admin                          | To see all databases with SHOW DATABASES              |
| Show view               | Tables                                | To see views with SHOW CREATE VIEW                    |
| Shutdown                | Server Admin                          | To shut down the server                               |
| Super                   | Server Admin                          | To use KILL thread, SET GLOBAL, CHANGE MASTER, etc.   |
| Trigger                 | Tables                                | To use triggers                                       |
| Create tablespace       | Server Admin                          | To create/alter/drop tablespaces                      |
| Update                  | Tables                                | To update existing rows                               |
| Usage                   | Server Admin                          | No privileges - allow connect only                    |
+-------------------------+---------------------------------------+-------------------------------------------------------+

select user,host from mysql.user;

　　显示服务器上用户账号的一个列表。

SET PASSWORD [for 'user'@'host']=PASSWORD('password')

　　修改用户账户密码。

SHOW GRANTS [FOR 'user'[@'host']]

　　为给定用户列出GRANT语句。如果没有指定FOR语句，默认为当前用户。

SELECT DATABASE();

　　显示当前数据库。

SELECT CURRENT_USER();

　　显示当前mysql服务器连接的用户名和主机的组合。

SELECT USER();

　　显示当前会话连接的用户名和主机的组合。

SHOW CREATE TABLE　　

SHOW CREATE TABLE [code]tbl_name

[/code]
Shows the

CREATE TABLE

statement that creates the given table.

SHOW CREATE {DATABASE | SCHEMA} [code]db_name

[/code]
Shows the

CREATE DATABASE

statement that creates the given database.

SHOW CREATE SCHEMA

is a synonym for

SHOW CREATE DATABASE

.

待续。。。

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