Nov 22, 2025 · Indexes in SQL are special database structures that speed up data retrieval by allowing quick access to records instead of scanning the entire table. They act like a lookup …

Jul 6, 2011 · Generally, when you create an index on a table, database will automatically use that index while searching for data in that table. You don't need to do anything about that.

Indexes are used to retrieve data from the database very fast. The users cannot see the indexes, they are just used to speed up searches/queries. The following SQL creates an index named …

When an index is created or rebuilt, the query optimizes updates statistics on the index. For a partitioned index, the query optimizer uses the default sampling algorithm instead of scanning …

6 days ago · Learn how to improve SQL Server query optimization by not rewriting the query and using the proper indexes.

Mar 12, 2024 · Our Understanding Indexes course explains how indexes work and guides you through how and when to create an index. Its hands-on exercises will help you quickly grasp …

Nov 27, 2018 · This article explains how to use SQL indexes as one of the best ways to improve the performance of queries and provides some of the most common indexing strategy guidelines

Jul 3, 2025 · In this post, we’ll walk through SQL indexes from scratch, building up to best practices, types of indexes, query performance plans, and even real-life cases using the Query …

Feb 10, 2025 · SQL indexing is a fundamental technique for improving database query performance. By understanding the different types of indexes, best practices, and common …

Unlock SQL Server performance! Learn about indexes: what they are, how they work, when to use them, and best practices for optimal database efficiency. Improve query speeds!