If you want to use*word*(equivalent toWHERE field_a LIKE '%word%'in SQL) to query data, you can use fuzzy query for better performance. For more information, seeFuzzy query. If you perform a fuzzy query, the query performance is not compromised when the data volume increases. ...
If you want to use*word*(equivalent toWHERE field_a LIKE '%word%'in SQL) to query data, you can use fuzzy query for better performance. For more information, seeFuzzy query. If you perform a fuzzy query, the query performance is not compromised when the data volume increases. ...
I belive this may be due to the underlying nature of MSSQL 2005 and the way the query optimizer decides which execution plan is the most efficient. If you use a SQL variable, it should 'trick' the query optimizer into using hash matches instead of nested loops which will result ...
sharing the same name. If we perform a query specifying just the LastName field, we would be unable to tell which customer is which. By adding the CustId field either explicitly or implicitly by using a wildcard, we can now identify that customer using their ID in addition to their name...
I was wondering why my SQL Query Analyzer output apparently listed "ch" twice -- thanks for listing the accurate output (in which the fourth row is not "ch"). Now try SELECT DISTINCTing the column -- the #rows should tell us precisely how many LIKE '_' characters actually exist between...
This table has 19,972 records and the query returns only three records. It does an Index Scan, meaning the entire index of cust_name had to be scanned to find just three records which is not good in terms of performance. The query above cannot be further improved. ...
Create SQL Server T-SQL Function for LIKE Escape Clause To facilitate the routine, a function can be created that will prepare a string for using in the LIKE operator with an ESCAPE clause. This function will consider all possible wildcard characters which can affect the query result...
Resorting to FTS is the long term goal. But since I only needidhere I did some experiment to see if I improve some query performance. But I was surprised to seeselect * ...is faster thanselect id ... I have around 2.5 millions records,select *alway takes about1sec...
The following actions might solve or mitigate performance problems with these queries: PerformCONTAINSsearches off-hours. MinimizeCONTAINSsearches in the application; for example, make the default behaviorSTARTS WITH. Possibly use a CBR query instead of a query with aCONTAINSsearch....
@xrequestorName nvarchar(50)' EXEC sp_executesql @sql,@paramlist, @beginDate,@endDate,@companyName,@requestorName Thanks for the feedback. Viewing 15 posts - 1 through 15 (of 15 total) You must be logged in to reply to this topic.Login to reply...