Microsoft SQL Server String Functions PatIndex
Example
Returns the starting position of the first occurrence of a the specified pattern in the specified expression.
Parameters:
-
pattern. A character expression the contains the sequence to be found. Limited to A maximum length of 8000 chars. Wildcards (
%,_) can be used in the pattern. If the pattern does not start with a wildcard, it may only match whatever is in the beginning of the expression. If it doesn't end with a wildcard, it may only match whatever is in the end of the expression. -
expression. Any string data type.
SELECT PATINDEX('%ter%', 'interesting') -- Returns 3.
SELECT PATINDEX('%t_r%t%', 'interesting') -- Returns 3.
SELECT PATINDEX('ter%', 'interesting') -- Returns 0, since 'ter' is not at the start.
SELECT PATINDEX('inter%', 'interesting') -- Returns 1.
SELECT PATINDEX('%ing', 'interesting') -- Returns 9.
