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我想知道我怎樣才能得到一個消息,如果我的薪水SUM爲0。請檢查我的代碼:SumSalary 0不顯示
DECLARE
v_sum_sal NUMBER(10,2);
v_deptno NUMBER NOT NULL := 10;
BEGIN
SELECT SUM(salary) -- group function
INTO v_sum_sal FROM employees
WHERE department_id = v_deptno;
IF v_sum_sal = 0 THEN
DBMS_OUTPUT.PUT_LINE ('You have selected 0 employees ');
else
DBMS_OUTPUT.PUT_LINE ('The sum of salary is ' || v_sum_sal);
end if;
END;
它工作。感謝您的幫助! – Kaloyan