MYSQLONUPDATECURRENT_TIMESTAMP_开发者

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MYSQLONUPDATECURRENT_TIMESTAMP

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MYSQL ON UPDATE CURRENT_TIMESTAMP当字段值发生改变时才会更新记录的时间
目录疑惑验证结论补充说明疑惑今天看到一个博客说：时间戳有ON UPDATE CURRENT_TIMESTAMP属性，无论值有没有改变时间都会更新（下面是别人博客的截图）
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How to fix an imageView to another and move both together?
I\'m developing a game in which I have a bow and arrow. I have to move b开发者_如何学Gooth bow and arrow imageViews on touch through different angles for which I\'m applying CGAffineTransform.
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