What is SQL Server?
SQL Server is a database management system that was developed by the company Microsoft.
This system works in a relational way, and other similar systems (although they belong to the competition) are Oracle, MariaDB, and MySQL, among others.
In its beginnings,
SQL Server was only available for Microsoft Windows operating systems, but in recent times this has changed, and today it is available for both GNU/Linux and Docker as well.
You can configure the SQL Server system in several instances on the same physical server. In case you choose to use it several times, it is recommended that you use the server name the first time and then opt for more specific names (you can include dates if you consider it easier that way).
SQL Server Query
|Inner Join||Left Join||Right Join||Self Join|
|Group By||Having||Order By||Where|