创建一个名为LH的视图,用来找出所有选课成绩为良好的学生号、课程号、课程名和成绩,下述语句中正确的是______。
A.CREATE VIEW LH AS;
SELECT KC.课程号,KC.课程名,SKB.学号,SKB.成绩;
FROM KC,SKB;
WHERE 成绩>=80
B.CREATE VIEW LH AS:
SELECT KC.课程号,KC.课程名,SKB.学号,SKB.成绩;
FROM KC INNER JOIN SKB;
ON 成绩>=80
C.CREATE VIEW LH AS;
SELECT KC.课程号,KC.课程名,SKB.学号,SKB.成绩;
FROM KC INNER JOIN SKB;
ON KC.课程号=JKB.课程号;
WHERE 成绩>=80
D.CREATE VIEW LH AS;
SELECT KC.课程号,KC.课程名,SKB.学号,SKB.成绩;
FROM KC INNER JOIN SKB;
ON KC.课程号=JKB.课程号;
GROUP BY 课程号;
HAVING 成绩>=80