Why indexes gets fragmented quickly

  • Hi All,

    What may be the cause for indexes getting fragmented quickly?

  • manohar-718845 (9/29/2009)


    Hi All,

    What may be the cause for indexes getting fragmented quickly?

    Multiple reasons, Shrinking the database, and lots of inserts and updates can have an effect on fragmentation.

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  • ...and too high a fill factor

  • What's quickly? What have you measured? What is the load on the db over that time? How many insert/update/deletes?

  • Through DBCC ShowContig I checked the logical fragmentation and also using DMV query to measure the index fragmentation.

    Database load is around 150 to 200 users.

    As I see there are no huge number of inserts and updates, normal inserts and updates are happening.

    Around 10 to 15 tables I have created three or four indexes as these tables are frequently used in selecting the data. For these tables, data will be inserted in there is no load on database, we have written windows service for this.

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