- Table of Contents
- Interactive Monitor
- Creating a New Class
- Populating a Class with Instances
- Querying a Class
- Redirecting SELECT Queries
- Joins Between Classes
- Using Aggregate Functions
The Postgres query language is a variant of
the SQL3 draft next-generation standard. It
has many extensions such as an extensible type system,
inheritance, functions and production rules. These are
features carried over from the original Postgres query
language, PostQuel. This section provides an overview
of how to use Postgres SQL to perform simple operations.
This manual is only intended to give you an idea of our
flavor of SQL and is in no way a complete tutorial on
SQL. Numerous books have been written on SQL, including
[MELT93] and [DATE97].
You should be aware that some language features
are not part of the ANSI standard.