Collections:
Rebuilding All Indexes on One Table in SQL Server
How To Rebuild All Indexes on a Single Table in SQL Server?
✍: FYIcenter.com
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.
⇒ DROP_EXISTING - Recreating an Existing Index in SQL Server
⇐ "ALTER INDEX ... REBUILD" - Defragmenting Indexes in SQL Server
2016-11-08, 2245🔥, 0💬
Popular Posts:
How To Convert Numeric Values to Integers in SQL Server Transact-SQL? Sometimes you need to round a ...
How To Update Multiple Rows with One UPDATE Statement in SQL Server? If the WHERE clause in an UPDAT...
What Are the Underflow and Overflow Behaviors on FLOAT Literals in SQL Server Transact-SQL? If you e...
How to continue to the next iteration of a WHILE loop in SQL Server Transact-SQL? How to use CONTINU...
How to execute statements under given conditions in SQL Server Transact-SQL? How to use IF ... ELSE ...