SQL SERVER – 2005 – Find Index Fragmentation Details – Slow Index Performance
Just a day ago, while using one index I was not able to get the desired performance from the table where it was applied. I just looked for its fragmentation and found it was heavily fragmented. After I reorganized index it worked perfectly fine. Here is the quick script I wrote to find fragmentation of the database for all the indexes.
SELECT ps.database_id, ps.OBJECT_ID, ps.index_id, b.name, ps.avg_fragmentation_in_percent FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL, NULL, NULL) AS ps INNER JOIN sys.indexes AS b ON ps.OBJECT_ID = b.OBJECT_ID AND ps.index_id = b.index_id WHERE ps.database_id = DB_ID() ORDER BY ps.OBJECT_ID GO
You can REBUILD or REORGANIZE Index and improve performance. Here is article SQL SERVER – Difference Between Index Rebuild and Index Reorganize Explained with T-SQL Script for how to do it.
时间: 2024-10-26 19:03:53