在安装SQL Server的时候有时候需要有区分大小写的要求,只是在安装的时候改变Collation成CaseSensitive(区分大小写),其实至始至终也不明白Collation在SQL Server中的作用到底是什么。 Collation到底是什么? 说白了Collation其实就是描述了数据在数据库中是按照什么规则来描述字符,以及字符在数据库中如何排序和比较的,Collati...
例如,下一个查询确定AdventureWorks数据库默认的数据库排序规则(第一个参数是数据库名,第二个是要查看的Collation选 项): 1. SELECT DATABASEPROPERTYEX ( 'DataBaseName' , 'Collation' ) 1. 这个查询返回下面数据库的排序规则信息(在本例中它和SQL Server实例默认的一样,除非去显式修改它): 1. SQL_Latin1_...
比如Latin1_General_CI_AS对于列名是不区分大小写的,同一表中不能同时存有大写和小写的值的列,但Latin1_General_100_CS_AI_KS却可以; Collation的后缀中含有_CI表示Case-insensitive; 如果Collation的后缀中含有_CS表示Case-sensitive。 关于SQL Server Collation的特点就介绍到这里了,希望本次的介绍能够对您有所收...
SQL Server 2019 (15.x) introduces an additional option for UTF-8 encoding.You can specify these options by appending them to the collation name. For example, the collation Japanese_Bushu_Kakusu_100_CS_AS_KS_WS_UTF8 is case-sensitive, accent-sensitive, kana-sensitive, width-sensitive, and...
SQL Server 2019 (15.x) introduces an additional option for UTF-8 encoding.You can specify these options by appending them to the collation name. For example, the collation Japanese_Bushu_Kakusu_100_CS_AS_KS_WS_SC_UTF8 is case-sensitive, accent-sensitive, kana-sensitive, width-sensitive, ...
For example, two tables with names different only in case may be created in a database with case-sensitive collation, but may not be created in a database with case-insensitive collation. For more information, see Database Identifiers.
We can also see collation-dependent behavior with variables. Consider the following function:SQL Copy CREATE FUNCTION f(@x INT) RETURNS INT AS BEGIN DECLARE @I INT = 1 DECLARE @İ INT = 2 RETURN @x * @i END; This is a rather peculiar function. In a case-sensitive collation, the ...
Backups of case-sensitive databases failing 2987610 FIX: Error when you back up a database that has case-sensitive collation by using VSS in SQL Server 2012 SP2 Third-party backups that are made by using VSS writer may fail and return 8229 errors. 2987610 FIX: Error when you back up a...
You install an instance of SQL Server 2008 or SQL Server 2008 R2 that is configured to use a case-sensitive collation. You create a SQL Server performance condition alert that uses one of the counters in the following table: In this scenario, the alert is incorrectly raised. ...
CaseSensitivityCIspecifies case-insensitive,CSspecifies case-sensitive. AccentSensitivityAIspecifies accent-insensitive,ASspecifies accent-sensitive. BINSpecifies the binary sort order to be used. Remarks To list the SQL Server collations supported by your server, execute the following query. ...