What’s your average success rate of getting a SQL statement right on the first try? In best case, you botched a simple statement without side effects and just have to try again with correct ...

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

Statement level is the lowest level of granularity to fail or succeed upon. If you have in your example 100 records in table A to update based upon some logic (e.g. from another table, from a ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier.

Occasionally you might want to submit SQL statements that are not queries, such as statements that drop tables or create indexes. These non-query, non-SELECT statements do not produce output. You can ...