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mysql格式化小数

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Release: 2016-06-07 15:10:08
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欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 今天遇到一个问题,格式化浮点数的问题,用format(col,2)保留两位小数点,出现一个问题,例如 SELECT FORMAT(12562.6655,2); 结果:12,562.67 查看文档:Formats the number X to a format like

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  今天遇到一个问题,格式化浮点数的问题,用format(col,2)保留两位小数点,出现一个问题,例如

  SELECT FORMAT(12562.6655,2);

  结果:12,562.67

  查看文档:Formats the number X to a format like '#,###,###.##', rounded to D decimal places, and returns the result as a string. If D is 0, the result has no decimal point or fractional part.整数部分超过三位的时候以逗号分割,并且返回的结果是string类型的。

  mysql> SELECT FORMAT(12332.123456, 4);

  -> '12,332.1235'

  mysql> SELECT FORMAT(12332.1,4);

  -> '12,332.1000'

  mysql> SELECT FORMAT(12332.2,0);

  -> '12,332'

  没有达到预期结果,想要的结果不要以逗号分隔,

  select truncate(4545.1366,2);

  结果:4545.13,直接截取不四舍五入,还是有问题。

  select convert(4545.1366,decimal);

  结果:4545.14,达到预期。

mysql格式化小数

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