java调用db2存储过程例子

 

1.       JAVA 调用db2存储过程最简单的例子：

存储过程创建代码：

<o:p></o:p>

sql 代码

       SET SCHEMA IES      ;

Create procedure ies.test()

 LANGUAGE SQL

 Update t_ryxx set xm =’xy’ where ryxxid=’xm’     
         
          
          
           java 代码
           
           
           
             conn = DbMaster.getConn();
 System.out.println("begin………");
 proc = conn.prepareCall("{call test()}");
 proc.execute();
            
           
          
         <o:p></o:p> 
         2. Java调用db2带输入参数存储过程的例子：<o:p></o:p> 
         Db2创建存储过程的代码：<o:p></o:p> 
          
          
           sql 代码
           
           
           
             Drop procedure ies.test();
SET SCHEMA IES      ;
Create procedure ies.test(in i_ryxxid varchar(50))
 LANGUAGE SQL
Update t_ryxx set xm =’xy’ where ryxxid=i_ryxxid

            
           java 代码 
            
            
              conn = DbMaster.getConn();
 System.out.println("begin");
 proc = conn.prepareCall("{call test(?)}");
 proc.setString(1,"RY0003");
 proc.execute();
 System.out.println("end:");
             
              
            3.有输入输出参数的代码： 
            创建存储过程的代码： 
            
             sql 代码
             
             
             
               SET SCHEMA IES      ;
CREATE PROCEDURE IES.test (IN in_ryxxid varchar(50),out out_xm varchar(50))
    LANGUAGE SQL

select xm into out_xm from ies.t_ryxx where ryxxid=in_ryxxid;
              
               
             
              java 代码
              
              
              
                proc = conn.prepareCall("{ call test(?,?)}");
 proc.setString(1, "011900380103");
 proc.registerOutParameter(2, Types.VARCHAR);
 proc.execute();
 String xm = proc.getString(2);
 System.out.println("end:"+xm);
               
                
              4.带有游标的存储过程（不知道这里的游标什么时候close的。刚开始学，不懂 菜鸟真郁闷） 
              创建存储过程的代码：（这个存储过程的具体看上面一篇文章：DB2 存储过程开发最佳实践（转载）的最佳实践 3：正确设定游标的返回类型。http://acme1921209.iteye.com/blog/97829） 
              
               sql 代码
               
               
               
                 SET SCHEMA IES      ;
CREATE PROCEDURE IES.test (IN in_state varchar(50))
 result set 1
 language sql
 P1:BEGIN
DECLARE CUR cursor with return for select rybh,xm from ies.t_ryxx where ryzt=in_state with ur;

OPEN CUR;


END P1;
                
                 
               
                java 代码
                
                
                
                  proc = conn.prepareCall("{ call test(?)}");
 proc.setString(1, "停用");
 proc.execute();
 rst = proc.getResultSet();
while(rst.next()){
      System.err.println(rst.getString(1)+"     "+rst.getString(2));
      }
                 
                  
                  
                ====返回多个结果集的处理方法： 
                db2 8.2 存储过程创建代码： 
                
                 sql 代码
                 
                 
                 
                   create procedure getpeople()
dynamic result sets 2
 READS SQL DATA
 LANGUAGE SQL
BEGIN
      DECLARE rs1 CURSOR WITH RETURN TO CLIENT FOR
              SELECT RYBH,XM FROM IES.T_RYXX WHERE RYZT='停用' with ur;
     DECLARE rs2 CURSOR WITH RETURN TO CALLER FOR
             SELECT RYBH ,XM FROM IES.T_RYXX WHERE RYZT='正常' with ur;
     OPEN rs1;
     OPEN rs2;
END;
                  
                   
                 
                  java 代码
                  
                  
                  
                    proc = conn.prepareCall("{ call getpeople()}");
 proc.execute();
 rst = proc.getResultSet();
int i = 2 ,j = 0;
while(rst.next()&&j//j的作用：记录太多了，只想打印几个测试下
       System.out.println(rst.getString(1)+"     "+rst.getString(2));
        j++;
 }
 System.err.println("---------------------------------------------");
if (proc.getMoreResults()){  //getMoreResults()具体看api文档
      j = 0;
     while(rst.next()&&j//j的作用：记录太多了，只想打印几个测试下
      System.out.println(rst.getString(1)+"     "+rst.getString(2));
      j++;
          }
      }
 j = 0;