在执行添加数据时出现“Field 'name' doesn't have a default value”错误,导致错误的原因是()。
A.INSERT 语句出现了语法问题
B.name字段没有指定默认值,且添加了NOT NULL约束
C.name字段指定了默认值
D.name字段指定了默认值,且添加了NOT NULL约束
A.INSERT 语句出现了语法问题
B.name字段没有指定默认值,且添加了NOT NULL约束
C.name字段指定了默认值
D.name字段指定了默认值,且添加了NOT NULL约束
第1题
A.scientists have not found out how his cloak works.
B.the cloaking device is a total failure.
C.the cloaking device works only for microwaves.
D.the cloaking device works only for visible light.
第2题
A.the anti-smoking advertisements are not convincing owing to their exaggeration
B.the teenage smokers developed the habit of smoking out of the compulsory pressure from their schoolmates
C.smoking is a relatively low-costing bad habit
D.one can always get cigarettes in pubs when vending machines are removed
第3题
A.the anti-smoking advertisements are not convincing owing to their exaggeration
B.the teenage smokers developed the habit of smoking out of the compulsory pressure from their schoolmates
C.smoking is a relatively low-costing bad habit
D.one can always get cigarettes in pubs when vending machines are removed
第4题
A.It doesn't have a nice view.
B.It doesn't come with a sauna bath.
C.It's too expensive.
D.It doesn't have a kitchenette.
第6题
A.The store doesn't have the model he wants.
B.The store doesn't take credit cards.
C.The clerk insults the man.
D.The clock radio is too expensive.
第7题
A.It is small but delicately built across the harbour.
B.It doesn't have any restaurants in it.
C.Its foundation is 67 meters above sea level.
D.Its roof is supported on about 600 concrete columns.
第8题
A.His father doesn't have time to listen to a book on tape.
B.His father might find a book on tape convenient.
C.Books on tape aren't as popular as paperback books.
D.His father likes mysteries better than historical novels.
第9题
A.candidate
B.opponent
C.alternative
D.enemy
第10题
A.It doesn't have any musical background.
B.It has many musicians.
C.They pay much attention to Day' s work.
D.They didn't care about Day at all.
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