SQL Server 2017 Query Performance Tuning by Grant Fritchey

Author:Grant Fritchey
Language: eng
Format: epub
ISBN: 9781484238882
Publisher: Apress

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In a database with a great deal of transactions, tables and indexes become fragmented over time (assuming you’re not using the fill factor method just mentioned). Thus, to improve performance, you should check the fragmentation of the tables and indexes regularly, and you should defragment the ones with a high amount of fragmentation. You also may need to take into account the workload and defragment indexes as dictated by the load as well as the fragmentation level of the index. You can do this analysis for a database by following these steps:1.Identify all user tables in the current database to analyze fragmentation.

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