MySQL - 經常使用函數(數學函數)

(2).數學類 ABS (number2 ) //絕對值 BIN (decimal_number )//十進制轉二進制 CEILING (number2 )//向上取整 CONV(number2,from_base,to_base) //進制轉換 FLOOR (number2 )//向下取整 FORMAT (number,decimal_places) //保留小數位數 HEX (DecimalN

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