Nowadays, companies stores huge amount of data. Employees should have a minimum knowledge of database management in order to process data. This become a requirement in business positions. In this article, I will show one of the most used database programming languages called SQL. I teach you the most used SQL commands.
I provide a full description of each function, then a detailed example to put into practice things you learned.
After this example you will be able to:
create tables, insert into it values, update a table, join two tables from a database, delete a
table which is the minimum requirement to be able to manage your data in a database.