USER_INDEXES指什么？

Which indexes are economic indexes of Rankine Cycle ( ) A: Thermal efficiency B: Coal rate C: Heat rate D: Steam rate

将字段User改为user需要编写| rename User user

Indexes are _______. A: primary sources B: secondary sources C: tertiary sources

In Access, you can only create duplicate indexes for primary keywords.

Which of the following citation indexes was not originally published by the Institute for Scientific Information (ISI)?

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