With
the CREATE USER statement, we can only add one new user at a time.(
)
the CREATE USER statement, we can only add one new user at a time.(
)
举一反三
- 创建SQL<br/>Server 登录帐户的SQL语句是() A: CREATE<br/>LOGIN B: CREATE<br/>USER C: ADD<br/>LOGIN D: ADD<br/>USER
- According to what we learn ,which one is right? () A: on<br/>the operation time we can touch the hair B: on<br/>the operation time we can touch the operation field C: on<br/>the operation time we can touch the floor D: on<br/>the operation time we can touch the back said
- Only<br/>by ______ a clean environment can we truly encourage more<br/>tourists to come. (create)
- 要建立一个约束,保证用户表()中年龄()必须在16岁以上,下面语句正确的是()。 A: alter<br/>table user add constraint ck_age CHECK(age>16) B: alter<br/>table user add constraint df_age DEFAULT(16) for age C: alter<br/>table user add constraint uq_age UNIQUE(age>16) D: alter<br/>table user add constraint df_age DEFAULT(16)
- 要建立一个约束,保证用户表()中年龄()必须在16岁以上,下面语句正确的是_________。 A: alter table user<br/>add constraint df_age DEFAULT(16) for age B: alter table user<br/>add constraint ck_age CHECK(age>16) C: alter table user<br/>add constraint uq_age UNIQUE(age>16) D: alter table user<br/>add constraint df_age DEFAULT(16)