Now that you understand the basic structure of a SQL application, let's dissect the basis of information retrieval: the query. For many techies, especially those that focus on systems administration, ...

Add Query Analyzer, SQL Profiler, Performance Monitor and good query-writing habits to your bag of tricks, and you may never have to worry about performance complaints again. Performance optimization ...

Whether you’re just getting in to programming or you’ve avoided learning SQL, it’s something every developer faces eventually. You may not be responsible for building and maintaining a database, but ...

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 ...

First, the QA’s overall usability has been enhanced. It’s easier to use, partly because more information is now readily available. For example, you no longer need to query for the current connection’s ...