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 ...

This basic example will tell you how many rows are in your table: SELECT COUNT (*) FROM Sales; You can also use it to count the number of rows in any result set.

Encounter common SQL errors or issues and ask ChatGPT for guidance on troubleshooting and debugging your queries. Learn effective strategies to identify and resolve problems in your SQL code.