下面在sh_goods表中根据cat_id升序排序,并对每个cat_id按price降序排序的语句是()。
A: SELECT*FROMsh_goodsORDERBYpriceDESC,cat_id;
B: SELECT*FROMsh_goodsORDERBYprice,cat_id;
C: SELECT*FROMsh_goodsORDERBYcat_id,priceDESC;
D: SELECT*FROMsh_goodsORDERBYcat_idDESC,price;
A: SELECT*FROMsh_goodsORDERBYpriceDESC,cat_id;
B: SELECT*FROMsh_goodsORDERBYprice,cat_id;
C: SELECT*FROMsh_goodsORDERBYcat_id,priceDESC;
D: SELECT*FROMsh_goodsORDERBYcat_idDESC,price;
举一反三
- 下面在sh_goods表中根据cat_id升序排序,并对每个cat_id按price降序排序的语句是( )。[br][/br](1.0) A: SELECT * FROM sh_goods ORDER BY price DESC,cat_id; B: SELECT * FROM sh_goods ORDER BY cat_id,price DESC; C: SELECT * FROM sh_goods ORDER BY price ,cat_id; D: SELECT * FROM sh_goods ORDER BY cat_id DESC,price;
- 下面在sh_goods表中根据cat_id升序排序，当cat_id相同时按price降序排序的语句是（）。 A: SELECT * FROM sh_goods ORDER BY price DESC,cat_id; B: SELECT * FROM sh_goods ORDER BY price ,cat_id; C: SELECT * FROM sh_goods ORDER BY cat_id DESC,price; D: SELECT * FROM sh_goods ORDER BY cat_id,price DESC;
- 阅读下面T-SQL语句，对变量赋值时存在错误的是（ ）（其中money为钱币数据类型，为其变量赋值可用或者不用$等货币符号）。 A: declare @id int ,@price money Set @id =100 Set @price=$2.21 B: declare @id int ,@price money Select @id=100,@price=2.21 C: declare @id int ,@price money set @id=100,@price=2.21 D: declare @id int ,@price money Select @id=100Select @price=$2.21
- 下面用于查询student表中id值在1,2,3范围内的记录的SQL语句是（ ）。 A: SELECT * FROM student WHERE id=1,2,3; B: SELECT * FROM student WHERE (id=1,id=2,id=3); C: SELECT * FROM student WHERE id in (1,2,3); D: SELECT * FROM student WHERE id in 1,2,3;
- 下面选项中,用于查询student表中id在1~3范围内的记录的SQL语句是() A: SELECT*FROMstudentwhereid=1,2,3 B: SELECT*FROMstudentwhere(id=1,id=2,id=3) C: SELECT*FROMstudentwhereidin(1,2,3) D: SELECT*FROMstudentwhereidin1,2,3