【单选题】【消耗次数：1】
下列不属于并发操作带来的问题是（ ）。
①
丢失修改
②
死锁
③
不可重复读
④
脏读
参考答案：
复制
纠错
相关题目
【单选题】
数据库并发操作通常会带来三类问题，它们是( )。
①
插入异常、删除和更新异常
②
丢失修改、删除异常和更新异常
③
丢失修改、删除异常和读脏数据
④
丢失修改、不可重复读和读“脏”数据
随机题目
【单选题】
尺寸界限用（）绘制。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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粗实线
②
细
Normal
0
7.8 磅
0
2
false
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EN-US
ZH-CN
X-NONE
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实线
③
Normal
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7.8 磅
0
2
false
false
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EN-US
ZH-CN
X-NONE
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点划线
④
Normal
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7.8 磅
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2
false
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ZH-CN
X-NONE
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虚线