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Home >> FAQs/Tutorials >> SQL Server FAQ
SQL Server FAQ - DROP INDEX - Removing Existing Indexes
By: FYIcenter.com
(Continued from previous topic...)
How To Drop Existing Indexes?
For some reason, if you want remove an existing index,
you can use the DROP INDEX statement with following syntax:
CREATE INDEX table_name.index_name
The tutorial exercise below shows you how to remove the index "fyi_links_id":
USE FyiCenterData;
GO
SELECT * FROM sys.indexes WHERE object_id = (
SELECT object_id FROM sys.tables WHERE name = 'fyi_links'
);
GO
object_id name index_id type_desc is_unique
--------- ------------- -------- ---------- ---------
421576540 NULL 0 HEAP 0
421576540 fyi_links_id 2 NONCLUSTERED 0
421576540 fyi_links_url 3 NONCLUSTERED 0
DROP INDEX fyi_links.fyi_links_id;
GO
SELECT * FROM sys.indexes WHERE object_id = (
SELECT object_id FROM sys.tables WHERE name = 'fyi_links'
);
GO
object_id name index_id type_desc is_unique
--------- ------------- -------- ---------- ---------
421576540 NULL 0 HEAP 0
421576540 fyi_links_url 3 NONCLUSTERED 0
(Continued on next topic...)
- What Are Indexes?
- How To Create an Index on an Existing Table?
- How To View Existing Indexes on an Given Table using SP_HELP?
- How To View Existing Indexes on an Given Table using sys.indexes?
- How To Drop Existing Indexes?
- Is the PRIMARY KEY Column of a Table an Index?
- Does the UNIQUE Constraint Create an Index?
- What Is the Difference Between Clustered and Non-Clustered Indexes?
- How To Create a Clustered Index?
- How To Create an Index for Multiple Columns?
- How To Create a Large Table with Random Data for Index Testing?
- How To Measure Performance of INSERT Statements?
- Does Index Slows Down INSERT Statements?
- Does Index Speed Up SELECT Statements?
- What Happens If You Add a New Index to Large Table?
- What Is the Impact on Other User Sessions When Creating Indexes?
- What Is Index Fragmentation?
- What Causes Index Fragmentation?
- How To Defragment Table Indexes?
- How To Defragment Indexes with ALTER INDEX ... REORGANIZE?
- How To Rebuild Indexes with ALTER INDEX ... REBUILD?
- How To Rebuild All Indexes on a Single Table?
- How To Recreate an Existing Index?
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