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 ...

Continuing the company's shift to openness and interoperability, Microsoft yesterday released an updated PHP driver for its flagship Relational Database Management System (RDBMS), SQL Server. The new ...

The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...

If your eyes glazed over at the recent announcement of an “SQL injection” vulnerability in WordPress, take heart. You’re not alone. SQL injection attacks are a common kind of security flaw, but are ...

This repository demonstrates SQL performance optimization techniques using a sample database. It showcases best practices for indexing, query optimization, and schema design. The project is ...