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, 2180🔥, 0💬
Popular Posts:
How To Calculate DATETIME Value Differences Using the DATEDIFF() Function in SQL Server Transact-SQL...
How To Set Up SQL*Plus Output Format in Oracle? If you want to practice SQL statements with SQL*Plus...
Can Date and Time Values Be Converted into Integers in SQL Server Transact-SQL? Can date and time va...
How To Connect the Oracle Server as SYSDBA in Oracle? This is Step 4. The best way to connect to the...
How to obtain the number of rows found by the last SELECT statement using the FOUND_ROWS() function?...