CREATE INDEX Example The SQL statement below creates an index named "idx_lastname" on the "LastName" column in the "Persons" table:

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 …

Starting with SQL Server 2012 (11.x), in Azure SQL Database, SQL database in Microsoft Fabric, and in Azure SQL Managed Instance, if any one of the specified non-key columns are varchar (max), …

In this tutorial, you will learn about the SQL CREATE INDEX statement with the help of examples.

Mar 25, 2025 · Creating and using indexes in an SQL database is a critical task for optimizing query performance. Indexes allow the database to quickly find rows that match a specific column's value, …

May 14, 2025 · Think of indexing as creating a map that helps SQL quickly find the treasures (data) you seek. In this article, I'll guide you through ten real-world scenarios where indexing becomes your …

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.

Nov 22, 2025 · In this tutorial on Creating Indexes in SQL, you learned: Indexes are essential for improving database performance—but must be used wisely. Learn how to create indexes in SQL …

To create a non-clustered index, you use the CREATE INDEX statement: ON table_name(column_list); Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of the …

Mar 5, 2025 · Time to see how to use CREATE INDEX in the most popular databases. The simplified MySQL CREATE INDEX syntax is: For the complete syntax, all available options, and index types, …