| END IF;
END IF;
UPDATE emp SET sal=vsal WHERE empno=no;
RETURN vmesg;
END;
/
DECLARE
vmesg CHAR(50);
vempno emp.empno%TYPE;
BEGIN
vempno:=&empno;
vmesg:=Sal_Level(vempno);
DBMS_OUTPUT.PUT_LINE(vmesg);
END;
/
--SELECT empno,ename,sal,comm,hiredate FROM emp WHERE empno=:no;
Q.编写一个函数以显示该雇员在此组织中的工作天数。
A.
CREATE OR REPLACE FUNCTION Hire_Day(no emp.empno%TYPE) RETURN NUMBER AS
vhiredate emp.hiredate%TYPE;
vday NUMBER;
BEGIN
SELECT hiredate INTO vhiredate FROM emp WHERE empno=no;
vday:=CEIL(SYSDATE-vhiredate);
RETURN vday;
END;
/
DECLARE
vday NUMBER;
vempno emp.empno%TYPE;
BEGIN
vempno:=&empno;
vday:=Hire_Day(vempno);
DBMS_OUTPUT.PUT_LINE(vday);
END;
/
--SELECT empno,ename,sal,comm,hiredate FROM emp WHERE empno=:no;
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