t sql collat​​e与AS和AI有什么区别

Question

t sql collat​​e与AS和AI有什么区别？ 是否有人为每个人都有一个整理的字符列表？

select distinct s1.Field1, s2.Field2
    from s1 inner join s2
        on s1.Field1 collate Latin1_General_CI_AI = s2.Field2 collate Latin1_General_CI_AI

select distinct s1.Field1, s2.Field2
    from s1 inner join s2
        on s1.Field1 collate Latin1_General_CI_AS = s2.Field2 collate Latin1_General_CI_AS

Answer 1

AI == accent-insensitive
AS == accent-sensitive

有关整理的信息：

Latin1_General_CI_AI    Latin1-General, case-insensitive, accent-insensitive, kanatype-insensitive, width-insensitive
Latin1_General_CI_AS    Latin1-General, case-insensitive, accent-sensitive, kanatype-insensitive, width-insensitive

有关所有整理的详细信息，请

SELECT name, description
FROM fn_helpcollations()

请参阅Doc

Answer 2

AI / AS之间的整理差异是Accent Sensitive（AS）和Accent Insensitive（AI）。

CI / CS意味着不区分大小写（CI）和区分大小写（CS）。