Indexes and abstracts in SQL Server

Tags:
Abstracts
Indexes
SQL Server
In regards to a SQL Server, what is an index? Also, what is an abstract, and could you please explain the types of both of these items?

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An index is an object in the database which contains one or more columns from a single table. The data within the index is sorted which makes it much faster to search than searching the table it self.

There are a couple of blog posts which I’ve made about indexes.
<a href=”http://itknowledgeexchange.techtarget.com/sql-server/back-to-basics-whats-the-difference-between-a-scan-and-a-seek/”>What’s the difference between a Scan and a Seek?</a>
<a href=”http://itknowledgeexchange.techtarget.com/sql-server/back-to-basics-creating-indexes/”>Back To Basics: Creating Indexes</a>

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