SQL between and 日期范围 筛选数据不符

Posted 2023-03-08

表中数据 2011-7-13 16:02:46 类型是nvarchar(50)A:select * from table where [time] between '2011-7-1 00:00:00' and '2010-7-14 23:59:59' B:select * from table where [time] between '2011-7-2 00:00:00' and '2010-7-14 23:59:59' C:select * from table where [time] between '2011-7-9 00:00:00' and '2010-7-14 23:59:59' D:select * from table where [time] between '2011-7-10 00:00:00' and '2010-7-14 23:59:59' E:select * from table where [time] between '2011-7-13 00:00:00' and '2010-7-14 23:59:59' 理论应该是全部都可以查出来的但是事实上却是只有ADE可以所以我就怀疑是字符串的的比较造成的，原因如下：BC语句是2-9日，比表中的13日的“1”大现在求代码解决方案，是2-9日变成02-09日，还是说怎么转格式来比较

建议加上0，如2013-02-09，在某些情况下，字符串向日期的自动转换会被服务器操作系统的日期格式受影响 参考技术A select * from table where cast([time] as datetime), between '2011-7-2 00:00:00' and '2010-7-14 23:59:59' 这样看看行不