Creates a relational index on a table or view. Also called a rowstore index because it is either a clustered or nonclustered B-tree index. You can create a rowstore index before there is data in the table.

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 …

Nov 22, 2025 · The CREATE INDEX statement in SQL is used to create indexes on tables to speed up data retrieval. Indexes work in the background to improve query performance and overall database …

You create an index on a nested table column by creating the index on the nested table storage table. Include the NESTED_TABLE_ID pseudocolumn of the storage table to create a UNIQUE index, …

CREATE INDEX cannot be used to create a PRIMARY KEY; use ALTER TABLE instead. For more information about indexes, see Section 10.3.1, “How MySQL Uses Indexes”.

Nov 13, 2025 · CREATE INDEX constructs an index on the specified column (s) of the specified relation, which can be a table or a materialized view. Indexes are primarily used to enhance database …

2 days ago · Understand SQL CREATE INDEX with simple syntax and real examples. Explore use cases and key things you should know. Read now!

In summary, the CREATE INDEX statement is used to create an index on a table in SQL. It can improve the performance of queries that search for specific values in a table.

Introduce the nonclustered indexes and show how to use the SQL Server CREATE INDEX statement to create nonclustered indexes.

In SQL, the INDEX constraint in a column makes it faster to retrieve data when querying that column. In this tutorial, you will learn about the SQL CREATE INDEX statement with the help of examples.