swap(num1, num2);

DBMS_OUTPUT.PUT_LINE('num1 = ' || num1); DBMS_OUTPUT.PUT_LINE('num2 = ' || num2); END;

6、CREATE FUNCTION staff1_fun (c1 IN CHAR)

RETURN staff%ROWTYPE AS

v1_staff staff%ROWTYPE;

BEGIN

SELECT * INTO v1_staff FROM staff WHERE sno=c1;

RETURN v1_staff;

END;

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