请看如下的创建视图PARTS_VIEW的DDL语句： CREATE OR REPLACE parts_view
A: AS
B: SELECT
C: manufacturer_id, COUNT (part_id) TOTAL_PARTS
D: FROM
E: parts
F: GROUP BY manufacturer_id;
G: 基于以上PARTS_VIEW视图，可以使用如下哪个SQL语句A．SELECT *
H: FROM parts_view;
I: UPDATE parts_view
J: SET
K: total_parts=10000
L: WHERE manufacturer_id=3983;
M: DELETE FROM parts_view
N: WHERE
O: manufacturer_id=340394;
P: INSERT INTO parts_view
Q: VALUES (89485, 1009);
A: AS
B: SELECT
C: manufacturer_id, COUNT (part_id) TOTAL_PARTS
D: FROM
E: parts
F: GROUP BY manufacturer_id;
G: 基于以上PARTS_VIEW视图，可以使用如下哪个SQL语句A．SELECT *
H: FROM parts_view;
I: UPDATE parts_view
J: SET
K: total_parts=10000
L: WHERE manufacturer_id=3983;
M: DELETE FROM parts_view
N: WHERE
O: manufacturer_id=340394;
P: INSERT INTO parts_view
Q: VALUES (89485, 1009);
举一反三
- 下面定义视图的SQL语句，哪一个是错误的？（ ） A: create view VIEW1 as select id,name,sex from users B: create view VIEW2 as select count(*) as studentTotal,classname from student C: create view VIEW3 as select name,price from D: create view VIEW4 as select logdate,price,1.1*parice as ‘涨价’ from shop
- There are usually three parts in an argumentative essay: theme part, evidence to support points of view, and conclusion.
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- 在student表上创建view_stu视图,正确的语句是( )。 A: CREATE VIEW view_stu IS SELECT * FROM student; B: CREATE VIEW view_stu AS SELECT * FROM student; C: CREATE VIEW view_stu SELECT * FROM student; D: CREATE VIEW SELECT * FROM student AS view_stu;