An explanation from basic syntax to practical pitfallsYou can use SQL to search for data and retrieve records by specifying ...

PostgreSQL window functions make it possible to rank records, calculate running totals, and analyze data without combining ...

The theme for this time is SQL "execution plans."Execution plans are one of the technologies you absolutely must understand when considering database performance.However, this content might also be a ...

Out of all the programming languages you need to learn in the IT industry, SQL is one of the most important. SQL is so integral to modern big data access and organization processes that it’s never a ...

First introduced in SQL Server 2012, columnstore indexes can give you major performance gains -- provided you have the right workloads. Here's how columnstore indexes work and what types of data work ...

Data management language SQL (originally published as SEQUEL) first appeared in May 1974, so this month marks its 50th anniversary. We spoke to Peter Zaitsev, founder at Percona, to find out why SQL ...