Home/ Questions/Q 9082551
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-16T20:35:10+00:00

I am reading a partitioning tutorial of SQL Server on: http://databases.about.com/od/sqlserver/a/partitioning.htm Here the author

  • 0

I am reading a partitioning tutorial of SQL Server on:

http://databases.about.com/od/sqlserver/a/partitioning.htm

Here the author splits the table and stores them into 4 filegroups based on the CustomerNumber column.

What I want to know is, if I search on first name or last name:

Select * From tableName where FirstName Like '%Jack%'

would this query run faster if I partition? Will SQL Server issue 4 queries on separate filegroups and then merge the final results?

Edit:

While this wasn’t my original question but Raj and TimTom said it would result in table scan, but the query execution plan shows something else what I said. Am I missing something?

enter image description here

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Can partitioning improve performance…

    No. Partitioning is never about improving performance, is about data storage management and/or switch-in/switch-out ETL processing. IO parallelism can be achieved with multiple files in a single filegroup w/o the (severe!) drawbacks of partitioning. If you want a good article about partitioning I recommend Kendra Little How To Decide if You Should Use Table Partitioning.

    As for your question: LIKE '%text%' can only be answered efficiently using a fulltext search.

    • 0