Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception.

One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or the database is slow. In the ...

Here's a look at different ways to query Hadoop via SQL, some of which are part of the latest edition of MapR's Hadoop distribution ...

Query Store (QS): Introduced in SQL Server 2016, QS is similar to an airplane flight recorder with a specific focus on query plans and their performance. QS captures the history of queries, their ...