SQL Server删除角色的命令是____ A.DELETE USER B.DELETE ROLE C.DROP ROLE D.sp_droprolemember

设B={a,c,e,f,g,h}删除字母e和h? Delete[B,-4];Delete[B,6]|Delete[B,{{3},{6}}]|Delete[B,{3,6}]|Delete[B,3]; Delete[B,-1]

设B={a,c,e,f,g,h}删除字母e和h A: Delete[B,{{3},{6}}] B: Delete[B,3]; Delete[B,-1] C: Delete[B,-4];Delete[B,6] D: Delete[B,{3,6}]

‎设B={a,c,e,f,g,h}删除字母e和h‍ A: Delete[B,{{3},{6}}] B: Delete[B,3]; Delete[B,-1] C: Delete[B,-4];Delete[B,6] D: Delete[B,{3,6}]

删除经销商1018的数据记录的代码为( ) from distributors where distri_num=1018 A.drop table B.delete * C.drop column D.delete

删除商品信息表Goods中的所有信息的语句() A: DELETE B: DELETE FROM C: DELETE FROM Goods D: DELETE DATABASE

触发器可引用视图或临时表，并产生两个特殊的表是______。（ ） A: A．Deleted、Inserted B: B．Delete、Insert C: C．View、Table D: D．View1、Table1

char* p = new char(32);释放内存的语句是： A: delete &p; B: delete *p; C: delete [] p; D: delete <char> p;

在数据表employee中根据id删除员工信息，下列@Delete注解的写法正确的是（）。 A: @Delete("delete from employee where id = ?") B: @Delete("delete from employee") C: @Delete( delete from employee where id = D: {id} ) E: 以上说法都不正确

在SQL语言中，能正确实现级联删除的命令是( )。 A: A) ON DELETE CASCADES B: B) ON DELETE RESTRICTED C: C) ON DELETE NULLIFIES D: D) ON DELETE DEFAULT