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

SQL SELECT statement The SELECT statement tells the query optimizer what data to return, what tables to look in, what relations to follow, and what order to impose on the returned data.

Unlike the previous version of SQL Server, SQL Server 2000 lets you specify collations for almost any task, at virtually every level within a database — from table column to SELECT statement ...

In a recent paper titled "SQL Has Problems. We Can Fix Them", a research team at Google proposed the introduction of a new Pipe Syntax in SQL. Google's solution to address perceived limitations in ...

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.

But, if you specify select * from connection to remote (select employee_title as title, avg (employee_years), freq (employee_id) from sql.employee group by title order by title); ...