如何从Oracle存储过程获取两个返回值 [英] How to get two return value from Oracle Stored Procedure

问题描述

我知道如何从Oracle的Oracle SP中获得一个回报值，如下所述

I know how to get one return value from Oracle SP in Oracle as follow

MyReturn := MY_ORACLE_SP ();

如果MY_ORACLE_SP2的返回值不止一个.我该怎么办?

If MY_ORACLE_SP2's return value is more than one. How can I do?

推荐答案

-- IN arguments : you get them. You can modify them locally but caller won't see it
-- IN OUT arguments: initialized by caller, already have a value, you can modify them and the caller will see it
-- OUT arguments: they're reinitialized by the procedure, the caller will see the final value.
CREATE PROCEDURE f (p IN NUMBER, x IN OUT NUMBER, y OUT NUMBER)
IS
BEGIN
   x:=x * p;
   y:=4 * p;
END;
/

SET SERVEROUTPUT ON

declare
   foo number := 30;
   bar number := 0;
begin
   f(5,foo,bar);
   dbms_output.put_line(foo || ' ' || bar);
end;
/

输出:150 20

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