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.

You can use SQL to create, modify, search, and display database information. Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements.

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 ...

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 ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way?

Here's how to create a database query using the Design View tool. The LibreOffice suite of tools enables user to employ a seriously powerful office suite that can cover a number of tasks.

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.