The Sequel, or SQL, Server is owned by Microsoft. One can purchase an SQL Server from the Microsoft website. Microsoft also offers a free trial of the SQL Server.

T-SQL is Microsoft's version of the generic SQL langauge to be used with, for example, Microsoft SQL Server.

here are three principal sources of information from Microsoft about SQL Server: The documentation, tutorials, and samples installed with SQL Server. The SQL Server sites on the Microsoft Developer Network (MSDN) and TechNet. SQL Server information on additional Microsoft Web sites. If you do not find the information you are looking for in these sources, you can either post questions in the SQL Server community forums and newsgroups, or you can open a support case with Microsoft.

My sql, Microsoft sql , Microsoft Access, dBase, Filemaker pro are the examples for dbms and oracle and sql server are the examples for rdbms

SQL Server Integration Services is not a type of service, it is a component of a software package called Microsoft SQL Server. The only company that offers this software is Microsoft.