How Can I Ensure Case-Insensitive WHERE Clauses in SQL Server?

Case-Insensitive WHERE Clauses in SQL Server

When searching for data in a SQL Server database, the default behaviour is to ignore case in string comparisons. However, if a database overrides this setting, it may become necessary to specify the collation to use in a WHERE clause to ensure case-insensitivity.

To achieve case-insensitive comparisons, the COLLATE keyword can be used to specify the desired collation for the field being compared.

Example:

SELECT *
FROM myTable
WHERE myField = 'sOmeVal' COLLATE SQL_Latin1_General_CP1_CI_AS;

Explanation:

In this example, the COLLATE keyword is used with the SQL_Latin1_General_CP1_CI_AS collation, which is a case-insensitive collation. This ensures that the comparison between myField and 'sOmeVal' will ignore the difference in casing.

Note: The specific collation used will vary depending on the database and the desired behaviour. Refer to the Microsoft documentation for more information on available collations.

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