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Applies to: This syntax for CREATE INDEX currently applies to SQL Server 2022 (16.x), Azure SQL Database, and Azure SQL Managed Instance only. For ALTER INDEX , this syntax applies to SQL Server (Starting with SQL Server 2014 (12.x)) and Azure SQL Database.
Use the CREATE INDEX statement to create a non-clustered index to enhance the query speed.
The CREATE INDEX statement is used to create indexes in tables. Indexes are used to retrieve data from the database more quickly than otherwise. The users cannot see the indexes, they are just used to speed up searches/queries.
You will learn how to use SQL Server CREATE INDEX Syntax, SQL Server CREATE INDEX on table and view. Cluster Index and Non-Cluster Index.
You can create nonclustered indexes in SQL Server by using SQL Server Management Studio or Transact-SQL. A nonclustered index is an index structure separate from the data stored in a table that reorders one or more selected columns.
SQL Server provides two types of indexes: clustered index and non-clustered index. In this section, you will learn everything you need to know about indexes to come up with a good index strategy and optimize your queries.
This article describes how to add included (or nonkey) columns to extend the functionality of nonclustered indexes in SQL Server by using SQL Server Management Studio or Transact-SQL. By including nonkey columns, you can create nonclustered indexes that cover more queries.
This tutorial will try to go through each type of index available in SQL Server and explain why/when each one could be used to improve your query performance.
This tip will explain how indexes help SQL Server operate, the differences between the clustered and non-clustered indexes, how to choose which type to use, and give example scripts to make each kind.
Creating an index in SQL can optimize the performance of your database queries significantly. This section breaks down the process of creating a simple index into manageable steps. The first step to create a simple index is to identify the column (s) in your database table that you want to index.