Web如果保留位数过大,可以使用decimal (13,2)、decimal (15,2)等等。. 2、round函数就是返回一个数值,该数值是按照指定的小数位数进行四舍五入运算的结果,round函数的语法是:ROUND (number,num_digits),即:Round(数值,保留的小数位数) Number:需要进行四舍五入的数字。. Num ... WebMay 19, 2024 · mysql 中round函数的作用:在mysql中能够使用round函数用把数值字段舍入为指定的小数位数,在SELECT语句中使用,使用语法为“SELECT ROUND(column_name,decimals) FROM table_name;”,这里column_name是指“要舍入的字段”,decimals是指“规定要返回的小数位数”。. 具体使用示例: ROUND(X),返回参数X的四 …
MySQL round函数 - Mr_伍先生 - 博客园
WebMar 13, 2024 · msyql round函数隐藏问题. 1.背景. 在用mysql round进行四舍五入计算的时候如果参与计算的字段为float,则最终计算出的四舍五入效果会有很大出入。. 例子我就不 … WebMay 19, 2024 · mysql 中round函数的作用:在mysql中能够使用round函数用把数值字段舍入为指定的小数位数,在SELECT语句中使用,使用语法为“SELECT ROUND … building kidz daly city
How to Use the ROUND() Function in SQL LearnSQL.com
WebReturn the arc tangent. ATAN2 (), ATAN () Return the arc tangent of the two arguments. CEIL () Return the smallest integer value not less than the argument. CEILING () Return the smallest integer value not less than the argument. CONV () Convert numbers between different number bases. WebNov 19, 2015 · Based on the official MySQL documentation there is no way to specify a rounding strategy. By default, ROUND uses the “round half up” rule for exact-value numbers. However, I needed a function that behaves like java.math.BigDecimal with java.math.RoundingMode.HALF_DOWN mode. So the only solution that I found was to … WebConsider one example to clarify the concept. If digit after the round value is greater than or equal to 5 –. A positive number is rounded up –. SELECT ROUND (26.5); Execution of the above query gives the following output –. The negative … building kids san francisco