创建:

CREATE OR REPLACE 
FUNCTION "TEST_FFF" (aa  VARCHAR2)
return number is
  Result number;
BEGIN
	-- routine body goes here, e.g.
	-- DBMS_OUTPUT.PUT_LINE('Navicat for Oracle');
Result:=12+1;
	RETURN (Result);
END TEST_FFF;

 调用:

SELECT TEST_FFF('12') from dual;

  

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