SQL’s JOIN definition is very simple. It is the filtered Cartesian product of two tables, represented by syntax A JOIN B ON …. The general definition does not capture the essence of JOIN operations, ...

I build CTAS tables using Azure Synapse Analytics syntax which is valid T-SQL in my version of Azure SQL Server. While my code runs as intended with this extension, the syntax for my CTAS tables is ...

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 ...