数据仓库服务 GAUSSDB(DWS)-动态调用匿名块:示例

时间：2024-06-29 17:51:20

示例

  
       --创建存储过程dynamic_proc
CREATE OR REPLACE PROCEDURE dynamic_proc
AS
   staff_id     NUMBER(6) := 200;
   first_name   VARCHAR2(20);
   salary       NUMBER(8,2);
BEGIN
    --执行匿名块 
    EXECUTE IMMEDIATE 'begin select first_name, salary into :first_name, :salary from staffs where staff_id= :dno; end;'
       USING OUT first_name, OUT salary, IN staff_id;
   dbms_output.put_line(first_name|| ' ' || salary);
END;
/

--调用存储过程
CALL dynamic_proc();

--删除存储过程
DROP PROCEDURE dynamic_proc;