按日期排序明智的报告？

Question

按日期排序报告问题

select 
    liftingbirds, totalweight, avgweight, dcno,
    convert(varchar,liftingdate,103) as liftingdate 
from 
    k_LiftingEntryRecords 
where 
    dcno = @dcno 
order by 
    liftingdate desc

这里我没有获得订单明智的日期报告......当我删除条件时 dcno = @dcno，那就是订单明智的日期报告...

select 
    liftingbirds, totalweight, avgweight, dcno,
    convert(varchar,liftingdate,103) as liftingdate 
from 
    k_LiftingEntryRecords 
order by 
    liftingdate desc

另外，它不会来......就像

Answer 1

varchar是一个字符串而不是日期。 sql server中的字符串比较按字母顺序完成，这与按日期数据类型排序非常不同。让我知道如果您了解其中的差异，否则我会扩大我的答案