SELECT STUDENT.,STUDENT.姓名,SKB.平均成绩 WHERE STUDENT. = SKB. GROUP BY STUDENT. INTO CURSOR RS B CREATE VIEW RS AS SELECT STUDENT.,STUDENT.姓名,SKB.平均成绩 WHERE STUDENT. = SKB. GROUP BY STUDENT.
C.
SELECT STUDENT.,STUDENT.姓名,SKB 平均成绩 WHERE STUDENT. = SKB. GROUP BY STUDENT. INTO CURSOR RS
E.
CREATE VIEW RS AS SELECT STUDENT.,STUDENT.姓名,AVG(SKB.成绩) AS 平均成绩 WHERE STUDENT. = SKB.学 号 GROUP BY STUDENT.