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Clustered and Non clustered composite index

Bleeb — Fri, 08 May 2009 20:22:01 +0000

I have a database that has a clustered composite index and 2 non clustered indexes on each of the columns used in the composite index. Doesn’t it just need the clustered index?

What is difference between Clustered Index and Non-Cluster Index?

Amin4rmOvexTechnology — Tue, 17 Feb 2009 06:27:14 +0000

Question Edited by MTidmarsh

Advantages and disadvantages of clustered indexes

SQL Server Ask the Experts — Tue, 06 Jan 2009 16:41:18 +0000

What are the advantages and disadvantages of clustered indexes?

Clustered and Non-clustered Index

Plugsharma — Wed, 17 Dec 2008 13:51:50 +0000

Hi,

I have one table having more than 3 millions rows with following columns:

[SITE_ID]

[USER_NAME]

[PAGE_TYPE]

[DOC_ID]

[FROM_PAGE]

[TO_PAGE]

[ORG_NAME]

[LOG_DATE_TIME]

[SESSION_ID]

[IP]

[MACHINE_ID]

I am using 8 different queries, all thru stored procedure, to fetch data.

SITE_ID, USER_NAME, ORG_NAME and ACTION are in all queries WHERE clause.

I have created SITE_ID as non-unique clustered index and USER_NAME, ORG_NAME and ACTION as non-unique non-clustered index.

Problem is that data fetching without indexs is faster than when creating idex.

Is there any problem in index columns.

Can you please suggest me a better index plan.

I have attached the queries / column table image file.

Images file described columns called details

(http://xs434.xs.to/xs434/08513/queries-columns997.jpg or

http://xs.to/xs.php?h=xs434&d=08513&f=queries-columns997.jpg)

Please help..

Thanks

Sharma