Everyone wants faster database queries, and both SQL developers and DBAs can turn to many time-tested methods to achieve that goal. Unfortunately, no single method is foolproof or ironclad. But even ...

Normalized data giving you problems? Learn how to use the SQL subselect statement and handle your database like a pro! Do you ever find yourself juggling queries to get the information you need?

This should be a quickie.<BR><BR>I need to write a query that has to run in a tight loop in my application, so I want to make it efficient.<BR><BR>Is there any significant difference in efficiency ...

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. Database engines like SQL Server are incredibly complex ...

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. Mongo’s query language has a ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...