-- 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; /
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