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mysql - 时间类型DATE需要设置长度么？外键ID用vachar存储长度设置多长合适呢？
阿神
2017-04-17 11:33:41
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时间类型DATE需要设置长度么？外键ID用vachar存储长度设置多长合适呢？
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阿神
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PHPzhong
2017-04-17 11:35:41
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Determine according to the specific time format
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Determine according to the specific time format