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