Indexing is a critical part of database optimization. Indexing can dramatically increase query speed. However, DBAs still struggle with finding optimal indexes or optimal SQL plans. DBTA held a ...

The most important performance-tuning technique available is having the needed indexes created on the tables to ensure that the SQL Server database engine is able to get the data that it needs to as ...

Database performance is rarely a single "fix it and forget it" task. SQL Server workloads shift over time. A sluggish ...

The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...

Using table indexes in databases enables you to find information within the database faster and more efficiently than not using table indexes. The two index types that are commonly used in database ...

First introduced in SQL Server 2012, columnstore indexes can give you major performance gains -- provided you have the right workloads. Here's how columnstore indexes work and what types of data work ...

Designing an appropriate set of indexes can be one of the more troubling aspects of developing efficient relational database applications. Perhaps, the most important thing you can do to assure ...

I'm starting to work quite a bit with an Oracle database, and when talking to a coworker about a problem, his suggestion was to add a secondary index to a table, which helped with the performance ...

SQL Server 2025 gives developers new ways to work with text, JSON, real-time data changes and AI-ready vector data. Microsoft MVP Leonard Lobel explains why he considers it the most significant SQL ...