Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. As a consultant, I work on wide swaths of database systems, which means I get to see many, many SQL statements ...

Ask ChatGPT basic questions about SQL, such as “What is SQL?” or “What are the key components of SQL?” to get a foundational understanding of its purpose and structure. Gain insights into data types, ...

Access the query editor: You begin in Dune’s query editor, a dedicated environment for writing and executing code. Click “New ...

On Jan. 23, 2007 the W3C granted Recommendation status to XQuery, the XML query language designed to do for Web services what SQL did for relational databases. XQuery allows you to work in one common ...

Database performance impacts application tiers and user experience, as well as cloud costs. Yet, understanding database issues is challenging. Whether it's MySQL, PostgreSQL, or cloud databases like ...

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 ...