CREATE OR REPLACE FUNCTION TOTALSALARY
RETURN NUMBER
IS
TOTAL_SAL NUMBER := 0;
BEGIN
SELECT NVL(SUM(SALARY),0) INTO TOTAL_SAL FROM EMPLOYEE
RETURN TOTAL_SAL
END TOTALSALARY;
/
问题来了
编写一个 PL/SQL 函数,返回所有员工的总工资。
功能要求:
函数名称:TOTALSALARY
员工:
Column name Data type Constraints
EMP_ID NUMBER(5) PK
FIRST_NAME VARCHAR2(25) NOT NULL
LAST_NAME VARCHAR2(25)
DEPT VARCHAR2(25)
SALARY NUMBER
您错过了 SELECT 和 RETURN 语句末尾的分号 (;)。 尝试这样:
CREATE OR REPLACE FUNCTION TOTALSALARY
RETURN NUMBER
IS
TOTAL_SAL NUMBER := 0;
BEGIN
SELECT NVL(SUM(SALARY),0) INTO TOTAL_SAL FROM EMPLOYEE;
RETURN TOTAL_SAL;
END TOTALSALARY;
/