Oracle_12.1_Java开发2日通_2014.2(1)

Oracle12c支持JDK6和JDK7

oracle.jdbc,oracle.sql包

jdbc:oracle:thin:hr/hr@localhost:1521:oracle

默认一个Statement对象同时只能有一个ResultSet对象能被读取

因此要读取多个ResultSet要用多个Statement

ResultSet会被自动关闭,在那个Statement被关闭,被重新运行或多个结果集中查看下一个ResultSet时

SELECT * FROM Employees WHERE ID=xyz;//每次后面的字串改变时,都会重新编译一次Statement

// JDBC syntax
CallableStatement cs1 = conn.prepareCall
( "{call proc (?,?)}" ) ; // stored proc
CallableStatement cs2 = conn.prepareCall
( "{? = call func (?,?)}" ) ; // stored func
// Oracle PL/SQL block syntax
CallableStatement cs3 = conn.prepareCall
( "begin proc (?,?); end;" ) ; // stored proc
CallableStatement cs4 = conn.prepareCall
( "begin ? := func(?,?); end;" ) ; // stored func

 

create or replace function foo (val1 char)
return char as
begin
return val1 || 'suffix';
end;

 

CallableStatement cs = conn.prepareCall ("begin ? := foo(?); end;");
cs.registerOutParameter(1,Types.CHAR);
cs.setString(2, "aa");
cs.executeUpdate();
String result = cs.getString(1);

 

CREATE OR REPLACE PROCEDURE INSERT_EMPLOYEE (p_first_name  employees.first_
name%type,
p_last_name    employees.last_name%type,
p_email        employees.email%type,
p_phone_number employees.phone_number%type,
p_job_id       employees.job_id%type,
p_salary       employees.salary%type
)
AS
BEGIN
INSERT INTO Employees VALUES (EMPLOYEES_SEQ.nextval, p_first_name ,
p_last_name , p_email , p_phone_number, SYSDATE, p_job_id,
p_salary,.30,100,80);
END insert_employee;

 

public String addEmployeeSP(String first_name, String last_name,
String email, String phone_number, String job_id,
int salary) throws SQLException {

try {
getDBConnection();
sqlString = "begin hr.insert_employee(?,?,?,?,?,?); end;";
CallableStatement callstmt = conn.prepareCall(sqlString);
callstmt.setString(1, first_name);
callstmt.setString(2, last_name);
callstmt.setString(3, email);
callstmt.setString(4, phone_number);
callstmt.setString(5, job_id);
callstmt.setInt(6, salary);
System.out.println("\nInserting with stored procedure: " +
sqlString);

callstmt.execute();
return "success";
}
catch ( SQLException ex ) {
System.out.println("Possible source of error: Make sure you have created the
stored procedure");
logException( ex );
return "failure";
}
}