Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this crash course in JOIN syntax.

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

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of.

Passing Joins to the DBMS Prior to Version 7 of the SAS System, an SQL query involving one or more DBMS tables or view descriptors was processed by the SQL procedure as if the DBMS tables were ...

Even if generative AI hides SQL behind the curtain, it will continue to play a critical role in how we interact with and use data.