stmt 为Statement对象,执行String sqlStatement=”delete from book where bid=’tp1001’”;语句后,删除数据库表的记录需要执行____语句
举一反三
- stmt为Statement对象，执行String sqlStatement = "delete from book where bid='tp1001' ";语句后，删除数据库表的记录需要执行stmt.executeUpdate ( )语句
- 删除demo表中id为1001的记录。其SQL语句为（ ）。 A: delete from demo where id=1001 B: delete demo C: delete from dmeo where id=1001 D: delete demo where id=1001
- 下列语句用来删除表对象或表数据，其中不正确的语句是（）。 A: TRUNCATE TABLE book B: DELETE * FROM book C: DROP TABLE book D: DELETE FROM book
- 下列语句用来删除数据表中指定记录，正确的语句是（ ）。 A: DELETE FROM book WHERE 单价>20 B: DELETE * FROM book C: DELETE FROM book HAVING 单价>20 D: DELETE FROM book
- 已知企业员工管理数据库中员工表结构如下：员工（工号，姓名，性别，年龄，部门）。现要从该表删除一条工号为“1001”的员工记录，则删除语句应该是（） A: delete from 员工 where 工号=1001 B: delete * from员工where工号=1001 C: delete员工where工号 is 1001 D: delete * from员工where工号 is 1001