• oracle 包,函数,过程,块的创建和执行及在java中执行(转)


    SQL> create or replace procedure sp_guocheng1 is--如果有这个名字就替换
      2  begin--执行部分
      3  insert into guocheng values('liyifeng','liyifeng');
      4  end;
      5  --执行的意思
     
    Procedure created

     

    显示错误
    SQL> show error;
    Errors for PROCEDURE LIYIFENG.SP_GUOCHENG1:
     
    LINE/COL ERROR
    -------- -----------------------------------------------------------------------------------------------------------------------------------------------------------------------

     

    --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    --------------------------------------
    3/22     PL/SQL: ORA-00928: 缺失 SELECT 关键字
    3/1      PL/SQL: SQL Statement ignored
    6/0      PLS-00103: 出现符号 "end-of-file"在需要下列之一时:   ( begin case     declare end exception exit for goto if loop mod null pragma     raise return select update while

     

    with <an identifier>     <a double-quoted delimited-identifier> <a bind variable> <<     continue close current delete fetch lock insert open rollback     savepoint set sql

    execute commit forall merge pipe purge 

    执行过程

    SQL> exec sp_guocheng1;
     
    PL/SQL procedure successfully completed
     
    SQL> commit;

     

    一个新的快
    SQL> set serveroutput on;--打开输出选项
    SQL>
    SQL> begin
      2    dbms_output.put_line('hello,world');--dbms_output是包.put_line是过程
      3  end;
      4  /
     
    hello,world
     
    PL/SQL procedure successfully completed

     

    带有变量的查询
    SQL> declare
      2  v_ename varchar2(25);
      3  v_id number;
      4  begin
      5    select name,id into v_ename,v_id from stu where name=&aa;
      6    dbms_output.put_line('用户名是:'||v_ename||v_id );
      7  end;
      8  /
     
    用户名是:liyifeng            0
     
    PL/SQL procedure successfully completed
     

    带有类外的查询
    SQL> declare
      2  v_ename varchar2(25);
      3  v_id number;
      4  begin
      5    select name,id into v_ename,v_id from stu where name=&aa;
      6    dbms_output.put_line('用户名是:'||v_ename||v_id );
      7  exception
      8    when no_data_found then
      9      dbms_output.put_line('您输入的数据不存在!');
     10  end;
     11  /
     
    您输入的数据不存在!
     
    PL/SQL procedure successfully completed

     

    --传入参数的过程  注意,定义参数的时候不能带上长度
    create procedure sp_gc1(v_id number,v_name varchar2) is
    begin
      update stu set name=v_name where id=v_id;
    end;

     

    过程在java中运行。。注意jdbc_oracle架包。。
    import java.sql.CallableStatement;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.Statement;

     


    public class testExec {

     

     /**
      * @param args
      */
     public static void main(String[] args) {
      // TODO Auto-generated method stub

     

      Connection ct=null;
      try{
       //加载驱动
    //  Class.forName("com.hxtt.sql.access.AccessDriver");//连接access的
      Class.forName("oracle.jdbc.driver.OracleDriver");
      //创建连接
      ct=DriverManager.getConnection("jdbc:oracle:thin:@192.168.1.9:1521:orcl","liyifeng","liyifeng");
      //创建 callablestatement
      CallableStatement cs=ct.prepareCall("{call sp_gc1(?,?)}");
      //给?复制
      cs.setInt(1, 0);
      cs.setString(2, "mountLee");
      //设置不自动提交事务
      ct.setAutoCommit(false);
      
      cs.execute();
      
      //提交事务
      ct.commit();
      //关闭资源
      cs.close();
      ct.close();
      }
      catch (Exception e){
       try {
       //如果失败,就回滚
       ct.rollback();
       }
       catch(Exception ex){ex.printStackTrace();}
       
       e.printStackTrace();
      }
     }

     

    }
     

     

    --传入参数并有返回值的函数
    create or replace function sp_guoc(v_id number
    return varchar2 is v_name varchar2(20);
    begin
      select name into v_name from stu where id=v_id;
    return v_name;
    end;

     

    【原创】oracle 块的创建和执行,存储过程的创建及在java中执行 - Mount_Lee - Mount_Lee的博客

     

    java中调用函数

    Statement sm=ct.createStatement();
      ResultSet rs=sm.executeQuery("select sp_guoc(0) from stu");
      if(rs.next()){
      System.out.print(rs.getString(1));}

     

     

    --创建包
    create or replace package sp_pack is
    procedure sp_pd (v_id number,v_name varchar2);
    function  sp_ft (v_id number) return number;
    end;

    --创建包体
    create or replace package body sp_pack is
    procedure sp_pd(v_id number,v_name varchar2) is
    begin
      update stu set name=v_name where id=v_id;
    end;
    function sp_ft(v_id number)
    return number is v_name number;
    begin
      select id into v_name from stu where id=v_id;
    return v_name;
    end;
    end;

    执行包中的过程

    SQL> exec sp_pack.sp_pd(0,'lee');
     
    PL/SQL procedure successfully completed
     
    SQL> commit;
     
    Commit complete

     

    java中执行包中函数的方法

    Statement sm=ct.createStatement();
      ResultSet rs=sm.executeQuery("select sp_pack.sp_ft(0) from stu");
      if(rs.next()){
      System.out.print(rs.getString(1));}

     http://blog.163.com/mount_lee/blog/static/20202509520122292827986/

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  • 原文地址:https://www.cnblogs.com/softidea/p/4469369.html
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