1、动态参数绑定,可以实现动态的执行不同的sql
--创建包 create or replace PACKAGE MYPACKAGE AS type empcursor is ref cursor; procedure queryEmpList(dno in number,empList out empcursor); END MYPACKAGE;
--创建包体 create or replace PACKAGE BODY MYPACKAGE AS procedure queryEmpList(dno in number,empList out empcursor) AS str_l_selectsql varchar2(4000); BEGIN str_l_selectsql :=‘select * from emp where deptno = :dno‘; --EXECUTE IMMEDIATE str_l_selectsql USING v_2;--不能实现动态绑定参数 --str_l_selectsql :=str_l_selectsql || dno;--可以通过拼接sql的方式,但不专业 --open empList for str_l_selectsql; --使用光标,首先要打开光标 open empList for str_l_selectsql USING dno;--动态绑定参数 NULL; END queryEmpList; END MYPACKAGE;
原文地址:https://www.cnblogs.com/ZeroMZ/p/9252037.html
时间: 2024-10-10 04:04:45