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【单选题】
关于SQL视图更新的可执行性,下列说法不正确的是( )。
A.
如果视图的select目标列包含聚集函数,则不能更新
B.
如果视图是由单个表的列构成,但并没有包括主键,则不能更新
C.
如果视图中包括了group by子句,则不能更新
D.
对于由单一Table子集构成的视图,即如果视图是从单个基本表使用选择、投影操作导出的,并且包含了基本表的主键,则不能更新
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参考答案:
举一反三
【单选题】在为体检病人量血压时,测量方法不正确的
A.
测量前让病人休息
B.
病人坐位时肱动脉平第四肋软骨
C.
将病人的衣袖卷至肩部
D.
袖带平整缠在上臂下部
【单选题】织品表面多呈山形斜纹或正反斜纹的丝织物是( )
A.
B.
C.
罗 ‍
D.
【单选题】The man _____ of shooting six children was caught by the police, the Xinhua News, reported on Friday. [     ]
A.
being suspected
B.
suspecting
C.
suspected
D.
to be suspected
【单选题】The man ____ of shooting six school children was caught by the police.
A.
suspected
B.
being suspected
C.
suspecting
D.
to be suspected
【简答题】I was on the escalator in a market.  There was an old man who was about five or six people in the front of me. People behind him were all in a hurry and saw him as a rock. The old man knew these clear...
【多选题】施工质量事后控制的主要内容包括( )等。
A.
质量计划
B.
自我约束
C.
他人监控
D.
质量活动结果的评价认定
E.
对质量偏差的纠正
【简答题】Six people were traveling in a compartment (包厢) on a train. Five of them were quiet and well-behaved(举止文明), but the sixth was a rude young man who was causing a lot of trouble to the other passenger...
【多选题】内部控制关键岗位主要包括()等经济活动的关键岗位。
A.
预算业务管理
B.
建设项目管理
C.
合同管理
D.
董事长
【多选题】内部控制活动主要评价内容包括()。
A.
业务经营管理评价
B.
会计核算和财务管理评价
C.
信息系统管理评价
D.
综合管理评价
E.
审计发现问题整改落实情况评价等
【简答题】Six people were travelling in a compartment on a train. Five of them were quiet and well behaved, but the sixth was a rude young man who was causing a lot of trouble to the other passengers. At a sta...
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