• 2022-06-06
    用于删除数据表student正确的语句是:
    A: drop student
    B: delete student
    C: drop database student
    D: drop table student
  • D

    内容

    • 0

      若要删除数据库中已经存在的表Student,可( )。 A: DELETE TABLE Student B: DELETE Student C: DROP Student D: DROP TABLE Student

    • 1

      如果要删除数据库中已经存在的表Student,可以使用()。 A: DELETE TABLE Student B: DELETE Student C: DROP TABLE Student D: DROP Student

    • 2

      删除STUDENT表中C2的默认值约束语句是()。 A: ALTER TABLE STUDENT DROP CONSTRAINT C2 B: DROP CONSTRAINT C2 C: DELETE CONSTRAINT C2 D: DROP STUDENT

    • 3

      删除当前数据库中名为Student的表,以下SQL语句正确的是______。 A: DROP TABLE Student B: DELETE TABLE Student C: REMOVE TABLE Student D: CLEAR TABLE Student

    • 4

      删除数据表student的命令是________。 A: droptablestudent; B: drop student; C: deletetablestudent; D: drop student