oracle 游标 简单使用

CREATE OR REPLACE FUNCTION GetRoleUser

(

Proleid   admin_list.roles_id %TYPE

)

RETURN varchar2 --函数返回类型

IS

Userlists  varchar2(4000);

cursor mycur is

select  admin_list.admin_name into Userlists  from admin_list where admin_list.roles_id=Proleid;

ccrec mycur%rowtype;

begin

begin

--打开游标

open mycur;

--loop循环

loop

--提取一行数据到ccrec中

fetch mycur into ccrec;

--判断是否提取到值，没取到值就退出

--取到值cc%notfound 是false

--取不到值cc%notfound 是true

exit when mycur%notfound;

Userlists:=Userlists||ccrec.admin_name||',';

end loop;

--关闭游标

close mycur;

end;

return Userlists;

END GetRoleUser;