SQL CREATE INDEX Statement. 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 can create indexes on CLR user-defined type columns if the type supports binary ordering. You can also create indexes on computed columns that are defined as method invocations off a user-defined type column, as long as the methods are marked deterministic and don't perform data access operations.

Notes: 1 In a federated system, table-name must identify a table in the federated database. It cannot identify a data source table. 2 If nickname is specified, the CREATE INDEX statement creates an index specification. In this case, INCLUDE, xml-index-specification, CLUSTER, EXTEND USING, PCTFREE, MINPCTUSED, DISALLOW REVERSE SCANS, ALLOW REVERSE SCANS, PAGE SPLIT, or COLLECT STATISTICS cannot ...

Jan 10, 2025 · The CREATE INDEX statement is used to create indexes in tables, enabling quicker searches and improving database efficiency. In this article, we will explain how to use the SQL CREATE INDEX Statement, when to create indexes, and why they are important for enhancing query performance.

SQL CREATE INDEX Syntax . The syntax of the SQL CREATE INDEX statement is: CREATE INDEX index_name ON table_name (column_name1, column_name2, ...); Here, index_name is the name given to the index; table_name is the name of the table on which the index is to be created; column_name1, column_name2, ... are the names of the columns to be included ...

Use the CREATE INDEX statement to create a non-clustered index to enhance the query speed.

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.

Jan 10, 2020 · The article covers how to use SQL CREATE INDEX statement to create a clustered as well as a non-clustered index. The article also shows the main differences between the two types of clustered indexes with the help of examples.

Jun 28, 2023 · To create an index, you’ll use the CREATE INDEX statement. The syntax for creating an index in SQL is straightforward: CREATE INDEX index_name ON table_name (column_name1, column_name2, ...);

create index In SQL, an index is a database object used to speed up the retrieval of data from tables. It works by creating a data structure that allows the database management system (DBMS) to quickly locate the rows of a table that match a particular search criteria.