SQL LIKE没有返回正确的结果

考虑下面的记录，其中

姓== '彼得' 和姓氏== 'AAAA'

当我运行下面的SELECT语句：

select * from Person where FirstName='Pete' and LastName like 'a%' -- 0 record returned 
select * from Person where FirstName='Pete' and LastName like 'aa%' -- 1 record returned 
select * from Person where FirstName='Pete' and LastName like 'aaa%' -- 0 record returned 
select * from Person where FirstName='Pete' and LastName like 'aaaa%' -- 1 record returned

当我在SQL小提琴中运行此操作 - 每个选择返回1条记录，因为它应该是 SQL Fiddle query

有人有什么想法吗？

来源

2012-11-09 camillajac

虽然我不明白为什么它应该影响事情像你描述的，你在干什么不区分大小写的比较？ – ChrisF

你能否提供你的Person表格模式？可能有排序问题 –

什么是列数据类型？那行的SELECT CAST（LastName AS VARBINARY（100））是什么结果？这是你正在运行的确切查询还是你为了这个问题而改变了它？ –

试试这个

select * from Person where FirstName='Pete' and LastName collate Latin1_General_CI_AS like 'a%' 
select * from Person where FirstName='Pete' and LastName collate Latin1_General_CI_AS like 'aa%' 
select * from Person where FirstName='Pete' and LastName collate Latin1_General_CI_AS like 'aaa%' 
select * from Person where FirstName='Pete' and LastName collate Latin1_General_CI_AS like 'aaaa%'

来源

2012-11-09 12:25:21

谢谢，但现在我必须找出如何在Linq中执行此操作;因为Linq不支持整理（？） – camillajac

SQL LIKE没有返回正确的结果

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