单项选择题
A.select *from students order by age desc,height descB.select *from students order age asc,height descC.select *from students order by age desc,height ascD.select *from students order by age asc,height desc
A.delete from 表名 where 条件B.delete table from 表名 where 条件C.delete from table 表名 where 条件D.delete * from 表名 where 条件
A.update 表名into 列1=值1,列2=值2...where 条件B.update table 表名set 列1=值1,列2=值2...where 条件C.update 表名set 列1=值1,列2=值2...where 条件D.update table 表名into 列1=值1,列2=值2...where 条件