要删除数据表tb_user中的全部数据，下列（ ）方法不能实现。 A: DELETE FROM tb_user WHERE nme='ll'; B: DELETE FROM tb_user; C: TRUNCTE TBLE tb_user; D: DROP tb_user

6.要删除数据表tb_user中的全部数据,下列()方法不能实现。 A: DELETE FROM tb_user WHERE name='all'; B: DELETE FROM tb_user; C: TRUNCATE TABLE tb_user; D: DROP TABLE tb_user;

要删除数据表tb_user中的全部数据，下列（ ）方法不能实现。 A: DELETE FROM tb_user WHERE name='all' B: DELETE FROM tb_user C: TRUNCATE TABLE tb_user

将字段User改为user需要编写| rename User user

高速铁路钢轨应符合（）规定。 A: TB/T3276 B: TB/T3200 C: TB/T3222 D: TB/T3232

以下是Java合法标识符: A: 7word B: s*t C: tb_user D: this

已知,存在 QueryRunner对象 runner , SQL语句: String sql = "select * from user where id=?"; 下面操作中,能实现查询指定记录的选项是() A: User user=(User)runner.query(sql, new BeanListHandler(User.class), new Object[]{id}); B: User user=(User)runner.query(sql, new BeanHandler(User.class)); C: User user=(User)runner.query(sql, new BeanListHandler(User.class), id); D: User user=(User)runner.query(sql, new BeanHandler(User.class), new Object[]{id});

request.setAttribute("user","svse");session.setAttribute("user","bob");使用{user}则显示( )

hive中清空表user的HQL语句为（ ） A: delete from user; B: remove table user; C: drop table user; D: truncate table user;

删除用户账户命令是( ) A: DROP USER B: DROP TABLE USER C: DELETE USER D: DELETE FROM USER