关于存储过程传出结果集的问题
请问在存储过程中如何把一个结果集传出来?我是个数据库菜鸟,请哪位大侠帮个忙!
不管传出来的参数是什么数据结构,请举个能够编译通过的例子,谢谢啦! 过程返回记录集:
CREATE OR REPLACE PACKAGE pkg_test
AS
TYPE myrctype IS REF CURSOR;
PROCEDURE get (p_id NUMBER, p_rc OUT myrctype);
END pkg_test;
/
CREATE OR REPLACE PACKAGE BODY pkg_test
AS
PROCEDURE get (p_id NUMBER, p_rc OUT myrctype)
IS
sqlstr VARCHAR2 (500);
BEGIN
IF p_id = 0 THEN
OPEN p_rc FOR
SELECT ID, NAME, sex, address, postcode, birthday
FROM student;
ELSE
sqlstr :=
'select id,name,sex,address,postcode,birthday
from student where id=:w_id';
OPEN p_rc FOR sqlstr USING p_id;
END IF;
END get;
END pkg_test;
/
函数返回记录集:
建立带ref cursor定义的包和包体及函数:
CREATE OR REPLACE
package pkg_test as
/* 定义ref cursor类型
不加return类型,为弱类型,允许动态sql查询,
否则为强类型,无法使用动态sql查询;
*/
type myrctype is ref cursor;
--函数申明
function get(intID number) return myrctype;
end pkg_test;
/
CREATE OR REPLACE
package body pkg_test as
--函数体
function get(intID number) return myrctype is
rc myrctype; --定义ref cursor变量
sqlstr varchar2(500);
begin
if intID=0 then
--静态测试,直接用select语句直接返回结果
open rc for select id,name,sex,address,postcode,birthday from student;
else
--动态sql赋值,用:w_id来申明该变量从外部获得
sqlstr := 'select id,name,sex,address,postcode,birthday from student where id=:w_id';
--动态测试,用sqlstr字符串返回结果,用using关键词传递参数
open rc for sqlstr using intid;
end if;
return rc;
end get;
end pkg_test;
/ get是函数,返回值类型为ref cursor,你可以在sqlplus下:
var c_cur refcursor;
begin
:c_cur:= pkg_test.get(0);
end;
/
print :c_cur;
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