SQL servers are relational database management systems. A relational database is a database in which data is organized into tables with predefined rows and columns.
There are numerous SQL databases like MySQL which is a powerful open-source database. There is also Microsoft SQL server that is highly flexible and has diverse functionalities. These are all protocols responsible for communication. For example, SQLNet is the protocol responsible for forwarding application requests for data from an oracle client to a server or vice versa and works on port 1521. The SQL database server uses port 1433 by default, while Oracle’s SQLnet uses port 1521 and the default port for MySQL is 3306.
The most common language used for these databases is Structured Query Language (SQL). SQL is a query programming language primarily used to query and operate database systems. It allows queries to be configured in real time and passed to database servers.
All these SQL protocols are installed by default when installing the SQL Server instance. It allows you to manage the connection to SQL server and provides the means to communicate and encrypts the communication as well.
SQL is useful when a company has a lot of data that needs to be managed. It allows for live queries, report generation, normalization and much more.
HansITAcademy 
You must be logged in to post a comment.