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I got more than 7 million rows in a table and
SELECT COUNT(*) FROM MyTable where MyColumn like '%some string%'
gives me 20,000 rows and takes more than 13 seconds.
The table has NONCLUSTERED INDEX on MyColumn.
Is there any way to improve speed?
Leading wildcards searches
can notbe optimised with T-SQL and won’t use an indexLook at SQL Server’s full text search