How to optimize this SQL query?
In case you have your own slow SQL query, you can optimize it automatically here.
For the query above, the following recommendations will be helpful as part of the SQL tuning process.
You'll find 3 sections below:
- Description of the steps you can take to speed up the query.
- The optimal indexes for this query, which you can copy and create in your database.
- An automatically re-written query you can copy and execute in your database.
The optimization process and recommendations:
- Avoid LIKE Searches With Leading Wildcard (query line: 9): The database will not use an index when using like searches with a leading wildcard (e.g. '%,%'). Although it's not always a satisfactory solution, please consider using prefix-match LIKE patterns (e.g. 'TERM%').
The optimized query:
tblIISLog.clientip) - 1) FROM
tblIISLog.clientip LIKE '%,%'