Why are there many versions of SQL?

Question

Why there are so many types of sql? There is only one SQL language, but the different DBMS's have extended the language with their own functionality where they found the language standard lacking. And different vendors don't always agrees on the syntax for the same functionality. 19 нояб. 2017 г.

How many different versions of SQL are there?

Between 1995 and 2016, Microsoft released 10 versions of SQL Server. The early versions were designed for departmental and workgroup applications. Microsoft expanded SQL Server's capabilities to make it an enterprise-class relational DBMS that could compete with Oracle Database, DB2, and other popular databases.

What is the difference between the different types of SQL?

Answer: The main difference between SQL and MS SQL is that SQL is a query language that is used in relation databases whereas MS SQL Server is itself a relational database management system (RDBMS) developed by Microsoft.

What are the different versions of SQL language?

All the Relational Database Management Systems (RDMS) like MySQL, MS Access, Oracle, Sybase, Informix, Postgres and SQL Server use SQL as their standard database language. MS SQL Server using T-SQL, Oracle using PL/SQL, MS Access version of SQL is called JET SQL (native format) etc.

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