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SQL Server CHARINDEX() Function


Search for "t" in string "Customer", and return position:

SELECT CHARINDEX('t', 'Customer') AS MatchPosition;
Try it Yourself »

Definition and Usage

The CHARINDEX() function searches for a substring in a string, and returns the position.

If the substring is not found, this function returns 0.

Note: This function performs a case-insensitive search.


CHARINDEX(substring, string, start)

Parameter Values

Parameter Description
substring Required. The substring to search for
string Required. The string to be searched
start Optional. The position where the search will start (if you do not want to start at the beginning of string). The first position in string is 1

Technical Details

Works in: SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse

More Examples


Search for "OM" in string "Customer", and return position:

SELECT CHARINDEX('OM', 'Customer') AS MatchPosition;
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Search for "mer" in string "Customer", and return position (start in position 3):

SELECT CHARINDEX('mer', 'Customer', 3) AS MatchPosition;
Try it Yourself »