====== SQL (Standard Query Language) ======


Query language with standardized syntax (Standard) common to most DBMS software operating relational databases. SQL statements are written in a similar way to English.

Syntax examples: Alter table table1 by adding a column named column5 with integers

  ALTER TABLE table1 ADD COLUMN colonne5 INTEGER NULL;

Select in the table employee name and employee service with the trainee status and in resulting table order the names alphabetically:

  SELECT nom, service 
  FROM   employe 
  W_HERE statut = 'stagiaire' 
  ORDER  BY nom;