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create non clustered non unique index sql server 2005

Posted on 2011-02-24
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Last Modified: 2012-05-11
Expert,

how to create non unique non clustered index? Is this correct?

CREATE NONCLUSTERED INDEX IX_SalesPerson_SalesQuota_SalesYTD
    ON Sales.SalesPerson (SalesQuota);
GO
Thanks,

Lynn
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Question by:yrcdba7
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7 Comments
 
LVL 18

Expert Comment

by:sventhan
ID: 34971982
CREATE NONCLUSTERED INDEX IX_SalesPerson_SalesQuota_SalesYTD
    ON Sales.SalesPerson (SalesQuota);
GO

or

CREATE INDEX IX_SalesPerson_SalesQuota_SalesYTD
    ON Sales.SalesPerson (SalesQuota);
GO
0
 
LVL 18

Expert Comment

by:sventhan
ID: 34971991
Syntax:

create index index_name on table(columnname)
0
 
LVL 15

Expert Comment

by:Aaron Shilo
ID: 34972098
yes your syntax is currect
0
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Author Comment

by:yrcdba7
ID: 34972101
Thank you,

how about clustered non-unique index?
0
 
LVL 41

Accepted Solution

by:
Sharath earned 2000 total points
ID: 34972136
Did you check the msdn? http://msdn.microsoft.com/en-us/library/ms188783.aspx
C. Creating a unique nonclustered index

The following example creates a unique nonclustered index on the Name column of the Production.UnitMeasure table. The index will enforce uniqueness on the data inserted into the Name column.

Copy
USE AdventureWorks2008R2;
GO
IF EXISTS (SELECT name from sys.indexes
             WHERE name = N'AK_UnitMeasure_Name')
    DROP INDEX AK_UnitMeasure_Name ON Production.UnitMeasure;
GO
CREATE UNIQUE INDEX AK_UnitMeasure_Name 
    ON Production.UnitMeasure(Name);
GO

Open in new window

If you don't mention UNIQUE, it won't create UNIQUE index.
0
 
LVL 15

Expert Comment

by:Aaron Shilo
ID: 34972266
you syntax will create a nonclustered nonunique index

create NONCLUSTERED index ABC_IDX on mytable(mycolumn)  = nonclustered nonunique

create UNIQUE  NONCLUSTERED index ABC_IDX on mytable(mycolumn)  = nonclustered unique

create CLUSTERED index ABC_IDX on mytable(mycolumn)  = clustered nonunique

create unique  CLUSTERED index ABC_IDX on mytable(mycolumn)  = clustered unique
0
 

Author Comment

by:yrcdba7
ID: 34973918
Thankyou, Lynn
0

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