SQL的数据定义功能包括A.定义表 B.定义视图 C.定义索引 D.以上都包括

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问题:

SQL的数据定义功能包括

A.定义表

B.定义视图

C.定义索引

D.以上都包括

考点:计算机等级考试数据库技术三级数据库技术笔试354
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阅读下文并回答问题。

For more than one month, people in China have been worried about the fate of the 239 people, including 154 Chinese passengers, on board Air Malaysia Flight MH370. However, today no matter how sad we are and how many details that are not clear, it is certain that flight MH370 crashed in the Indian Ocean and no one on board is alive. All the people in the world can do is to continue to look for the wreckage(残骸), talk with the Malaysian government for more information and accept the terrible fact.

People in China have been very disappointed with Malaysia Airlines these days. They do their best to show the Malaysian government that we will never give up knowing the truth. On the other hand, the number of Chinese people who choose to take a trip in Malaysia has been smaller and smaller. Many Chinese people including some famous movie stars say that they will never go to Malaysia any more.

At present, there’s a totally new expression coming out after this event. That is, “Don’t be so Malaysia.” People use it to describe someone who is unbelievable and likes telling lies to hide the truth.

小题1:Did the plane crash in the Indian Ocean?

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小题2:How many Chinese are there on Air Malaysia Flight MH370?

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小题3:What do many movie stars say after the event?

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沙障的设置应与主风方向(),通常在沙丘的迎风坡设置。

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金锁固精丸和固冲汤组成中均含有的药物是()

A.龙骨牡蛎

B.白术白芍

C.黄芪白术

D.芡实白术

E.山药苍术

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甲起诉乙要求支付货款,并赔偿违约造成的可预见的损失,下列说法中正确的是哪项( )

A.一审判决乙应支付货款,乙上诉后,法院发现一审漏判违约损失的,可以直接发回重审

B.在第二审中发现乙是挂靠在丙公司之下的,法院可以依职权追加丙,调解不成的,依法判决

C.在二审中乙提出甲的货物有问题,要求针对质量问题赔偿其受到的损失,法院调解不成的,需要发回重审

D.在二审中甲又提出要求乙支付迟延履行利息,二审法院调解不成的,告知其另行起诉

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