What is SQL? Please be specific?
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Some popular and important Relational Database Management Systems (that's the full mouthful) are: Oracle, DB2, MySQL, Microsoft SQL Server.
An important extension to SQL is a procedural version, such as PL-SQL for Oracle.
Other languages, from COBOL to JAVA, are often used as front ends to call small SQL scripts.
I'm an Oracle DBA, among other things; but, you could read this:
http://en.wikipedia.org/wiki/SQL
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M$
SQL is used to manage databases like MySQL, SQL Server, MS Access, Oracle, Sybase, DB2, and other database systems.
Websites use database for things like blogs, shopping carts, and user accounts.
Hope this is helpful
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M$
SQL is sever side programing language.
You wanted to know "What is the Relational Database system?"
In a database their is many commands which are align as a table(called as relation)...but many times tables need to relate with another table. Lets see an example A school's database should be organized for user search friendly. A man a find a student's profile by using his name/reading year/date of birth. So I need to make a table(relation) where a man will get everything of these of any student.
This type database are called relational database. It usually used to make database of financial records, manufacturing and logistical information, personnel data and much more.
What is SQL? It is a alternative of MS access.
In SQL every data managed by table(column and row)Like a table which we use to show Where?,When?How?Who?
You can manage your financial statement database in SQL.
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M$
Server management
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What is the Relational Database system?
The RDBMS is software that allows you to store data in an accessible and consistent fashion. If you don't recognize the names I mentioned it may be too difficult to explain here. Microsoft Access is another well known one for personal computers. You store your information according to a theory based on mathematical logic, in the form of records (tuples) with unique identifiers and the records are related to one another by foreign keys. You use a computer programming language to put your data into and get it out of your RDBMS. By managing the RDBMS with its tools you store the data and keep it safe.
There's a lot of training you can use for SQL servers and other areas of sql utilization. I think that this answer definitely goes perfectly with the SQL server training I took at http://campuslinc.com/Microsoft-SQL-Server-2008-Training-Buffalo-and-Rochester.html