Welcome to the PostreSQL tutorial. This website is a simple introduction to postgresql object-relational database system.
If you are a beginner in postgresql then this is the perfect place to start initiation in postgresql.
You can find examples with simple operations (eg: select, insert, update, create, delete) and also with advanced operations such as functions(eg: Create Function, Drop Function) and triggers(eg: Create Trigger, Drop trigger).
In PostgreSQL are four procedural languages with you can write functions:
This postgresql tutorial will be concentrated on PL/pgSQL language.
The basic commands of PL/pgSQL - SQL Procedural Language: