Read this SQL tutorial to learn when to use SELECT ... A simple SELECT statement is the most basic way to query multiple tables. You can call more than one table in the statement’s FROM clause ...

Some database vendors also have specific queries; for example, in MySQL, you can use SHOW TABLE STATUS to get stats about all tables, including row counts. With Microsoft T-SQL, there’s the ...

However, there are any number of queries in any application that SQL Server may never see again (at least in, for example, the next 24 hours). The plans for these "one-time" queries are taking up ...

In May 1974, Donald Chamberlin and Raymond Boyce published a paper on SEQUEL, a structured query ... in SQL that can have real and potentially catastrophic consequences. For example, missing ...

In this article I’ll provide several subselect examples and discuss when to use them. These articles should help you get on track: SQL Basics I: Data Queries—covers database terminology and ...