How to learn SQL: These are the best online courses Structured query language (SQL) is a programming language, but it’s not just for programmers.

You’ll learn to write SQL queries, combine data from multiple tables, and manipulate data to extract the information you need.

Want faster SQL queries? Here are nine best practices for writing SQL queries that work like a charm (or at least, like they should).

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

SQL has dominated data querying for decades. Newer query languages offer more elegance, simplicity, and flexibility for modern use cases.

SQL (or Structured Query Language) is a powerful programming language that is used for communicating with and extracting various data types from databases. A working knowledge of databases and SQL is ...