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SQL Server FAQ - Rebuilding All Indexes on One Table

By: FYIcenter.com

(Continued from previous topic...)

How To Rebuild All Indexes on a Single Table?

If you have several indexes on a single table and want to rebuild all of them, you may use the "ALTER INDEX ALL ON table_name REBUILD" statement as shown in the tutorial exercise below:

USE FyiCenterData;
GO

UPDATE fyi_links_indexed 
   SET url = REVERSE(url), counts = -counts
   WHERE id <=50000;
GO
(50000 row(s) affected)

SELECT i.index_id, i.name, s.avg_fragmentation_in_percent
   FROM sys.dm_db_index_physical_stats (
      DB_ID(N'FyiCenterData'), 
      OBJECT_ID(N'fyi_links_indexed'),
      DEFAULT, DEFAULT, DEFAULT) s, sys.indexes i
   WHERE s.object_id = i.object_id
      AND s.index_id = i.index_id;
GO
0        NULL             0.574712643678161
2        fyi_links_url    85.750315258512
3        fyi_links_counts 84.040404040404

ALTER INDEX ALL ON fyi_links_indexed REBUILD;
GO

SELECT i.index_id, i.name, s.avg_fragmentation_in_percent
   FROM sys.dm_db_index_physical_stats (
      DB_ID(N'FyiCenterData'), 
      OBJECT_ID(N'fyi_links_indexed'),
      DEFAULT, DEFAULT, DEFAULT) s, sys.indexes i
   WHERE s.object_id = i.object_id
      AND s.index_id = i.index_id;
GO
0        NULL             0.574712643678161
2        fyi_links_url    0.12987012987013
3        fyi_links_counts 0.448430493273543

Both indexes were defragmented to a very low level now.

(Continued on next topic...)

1. What Are Indexes?
2. How To Create an Index on an Existing Table?
3. How To View Existing Indexes on an Given Table using SP_HELP?
4. How To View Existing Indexes on an Given Table using sys.indexes?
5. How To Drop Existing Indexes?
6. Is the PRIMARY KEY Column of a Table an Index?
7. Does the UNIQUE Constraint Create an Index?
8. What Is the Difference Between Clustered and Non-Clustered Indexes?
9. How To Create a Clustered Index?
10. How To Create an Index for Multiple Columns?
11. How To Create a Large Table with Random Data for Index Testing?
12. How To Measure Performance of INSERT Statements?
13. Does Index Slows Down INSERT Statements?
14. Does Index Speed Up SELECT Statements?
15. What Happens If You Add a New Index to Large Table?
16. What Is the Impact on Other User Sessions When Creating Indexes?
17. What Is Index Fragmentation?
18. What Causes Index Fragmentation?
19. How To Defragment Table Indexes?
20. How To Defragment Indexes with ALTER INDEX ... REORGANIZE?
21. How To Rebuild Indexes with ALTER INDEX ... REBUILD?
22. How To Rebuild All Indexes on a Single Table?
23. How To Recreate an Existing Index?