5 docs tagged with "join tables"

Learn about SQL CROSS JOIN, how it creates Cartesian products, syntax, examples, and when to use it for generating all possible combinations.

Learn about SQL FULL OUTER JOIN, how it works, syntax, examples, and when to use it for including all records from both tables.

Learn about SQL INNER JOIN, how it works, syntax, examples, and best practices for combining data from multiple tables with matching records.

Learn about SQL LEFT JOIN (LEFT OUTER JOIN), how it works, syntax, examples, and when to use it for including all records from the left table.

Learn about SQL SELF JOIN, how to join a table with itself, syntax, examples, and use cases for hierarchical data and comparing rows within the same table.