What is SQL?

It is a kind of language. The database is accessed through this language. This language is used to perform any operation on the database. This language is a type of computer language for storing and manipulating data in a database.

SQL is a standard language and even after being a standard language, Oracle, Microsoft use it according to their own due to which, the standard of this language is difficult which is difficult to execute completely. Another reason for this is that each vendor has to differentiate his software from other software.