This SQL feature allows you to query within a result set, creatively limit your result set, or correlate your results with an otherwise unrelated query in a single call to the database.

In SQL Server 2017, automatic plan correction was added, which allows for the database engine to automatically use the "last known good plan" for a query that has suddenly regressed in performance.

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

Want faster SQL queries? Here are nine best practices for writing SQL queries that work like a charm (or at least, like they should).

How to Use SQL Statements in MS Excel. With most Excel spreadsheets, you enter data manually into cells and then use formulas or other functions to analyze it or perform calculations.

JSON and Entity Framework As a general remark, the JSON support in SQL Server 2016 is primarily exposed through the T-SQL syntax, as tooling is quite limited now. In particular, EF doesn't currently ...

Two caveats: First, even if you’re working with SQL Server 2016, your database’s compatibility level must be set to 130 or higher to use these features. You can view your database’s compatibility ...

The method you'll use to identify the slowly running queries will depend on the version of SQL Server you're using. If you're using SQL Server 2008 R2 through SQL Server 2014, you have the option ...

SQL and the Web Many popular websites are backed by SQL databases, which they use to pull user-specific data and data responsive to particular user queries as people navigate their sites.