Do you ever find yourself juggling queries to get the information you need? Subselects, also called subqueries, may be just what you’ve been looking for. This SQL feature allows you to query ...

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.

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of.

Returning JSON from SQL Server Queries With JSON now the default format for moving data between clients and servers, SQL Server adds JSON support to make it easier to get your data out of the database ...

MongoDB supports a rich query language ; in fact, its support of dynamic queries is one of its more distinguishing features compared to other datastores in the NoSQL world.

Null means "undefined" in SQL, so numerous online services don't think Christopher Null exists.