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Mysql中的decimal是什么类型_MySQL

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Release： 2016-06-01 13:12:11
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它是定义十进制小数，精度高，而且没有误差。和浮点数相差很大。浮点数是直接把小数转化为二进制，小数转化为二进制是有误差的，也就是说不能精确表示。decimal则可以没有任何误差的表示小数
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