[英]SQL Server 2005 where condition with string comparison
I am using SQL Server 2005 with the following query 我将SQL Server 2005与以下查询配合使用
SELECT *
FROM EMPLOYEE
WHERE EMP_NAME = 'ABCD'
It gave me the proper results and when i tried the same query with 'ABCD '
, then also it gave me the same result!!! 它给了我正确的结果,当我尝试使用
'ABCD '
进行相同的查询时,它也给了我相同的结果!
I feel it should not give any results as there is no employee with name 'ABCD '
我觉得它不会给出任何结果,因为没有名称为
'ABCD '
员工
Or "WHERE" condition works like this with String comparison? 还是“ WHERE”条件通过字符串比较像这样工作?
Surprisingly, that's how it works! 令人惊讶的是,它就是这样工作的!
INF: How SQL Server Compares Strings with Trailing Spaces : INF:SQL Server如何比较字符串与尾随空格 :
For example, Transact-SQL considers the strings 'abc' and 'abc ' to be equivalent for most comparison operations.
例如,Transact-SQL认为字符串“ abc”和“ abc”在大多数比较操作中是等效的。
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