PATINDEX functions returns the location of a pattern in a string. The search is not case-sensitive.
syntax:
PATINDEX( '%pattern% ', string ) The pattern that you want to find. pattern must be surrounded by % characters. Other wildcard characters can be used in pattern, such as:
% -- Allows you to match any string of any length (including zero length)
_ -- Allows you to match on a single character
[ ] -- Allows you to match on any character in the [ ] brackets (for example, [aeiou] would match on a, e, i, o, or u characters)
[^] -- Allows you to match on any character not in the [^] brackets (for example, [^aeiou] would match on any character that is not a, e, i, o, or u characters)
refer this link for some example
http://sqlandme.com/2011/07/05/sql-functions-patindex/ Mark This Response as Answer
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Chandu
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