--我用的方案 SELECT * FROM TABLE_Q ORDER BY CAST(ID AS SIGNED) ASC 备注: 不做特殊处理的话,数字位数不一样时排序有问题,比如10会比2小. 其他方案: ASC; SELECT * FROM TABLE_Q ORDER BY CONVERT(ID AS SIGNED) ASC; 参考博客: 1,Mysql中数字排序问题 - 陈袁的博客 - CSDN博客 https://blog.csdn.net/achenyuan/article/deta…
format函数: 格式化浮点数 format(number, length); 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. D should be a constant…
mysql数字加减科学计数法 这两天因为需求,需要获取一张表的流水号.规则是这样的.当前日期+8位流水号.比如:2015062400000001,2015062400000002,2015062400000003.... 因为考虑到并发问题,所以解决的方案是:在MySQL写存储过程,逻辑如下: 1.查询表今天流水号的最大主键值:如: SELECT MAX(a.ORDER_ID) from Zhang_Test a where 1=1 and a.order_id LIKE CONCAT('%',…