[英]How to make a column case sensitive in sql 2005 or 2008
Is it possible to change the default collation based on a column? 是否可以根据列更改默认排序规则? i want to make 1 column case sensitive but all the others not 我想让1列区分大小写,但不是所有其他区域
ALTER TABLE ALTER COLUMN
allows to change collation for a single column: ALTER TABLE ALTER COLUMN
允许更改单个列的排序规则:
alter table Foo alter column Bar ntext collate Latin1_General_CS_AS
(collation might be incorrect) (整理可能不正确)
I don't specifically know SQL Server, but the generally accepted DBMS practice (for compatibility) would be to either: 我不是特别了解SQL Server,但普遍接受的DBMS实践(兼容性)将是:
There may be a faster way to do it in SQL Server but you should be careful of solutions that push workload into the SELECT statements - they never scale well. 在SQL Server中可能有更快的方法,但是你应该小心将工作量推入SELECT语句的解决方案 - 它们从不能很好地扩展。 It's almost always better doing this as part of inserts and updates since that's the only time data changes - doing it that way minimizes the extra workload. 作为插入和更新的一部分,这几乎总是更好,因为这是数据更改的唯一时间 - 这样做可以最大限度地减少额外的工作量。
The answer to your question is yes, already stated above by Anton Gogolev . 你的问题的答案是肯定的, Anton Gogolev已在上面说过。
Additional Info: 附加信息:
Here is a how you can find list of Collation supported by your SQL Server based on its version. 以下是如何根据SQL Server的版本查找SQL Server支持的排序规则列表。
select name,
COLLATIONPROPERTY(name, 'CodePage') as Code_Page,
description
from sys.fn_HelpCollations()
what is the meaning of Kanatype Sensitive KS and width sensitive Kanatype Sensitive KS和宽度敏感是什么意思
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