if you know SQL syntax

[Hyperblaze]

What are the different databases that you can retrieve information from?

I know...

1) MySQL
2) PostgreSQL
3) MsSQL (I'm guessing)
4) Oracle (I believe?)

 

[sourceninja]

The list of database management systems that support SQL is crazy long.

 

[KLin]

http://en.wikipedia.org/wiki/Comparison_of_relational_database_management_systems

 

[StuckMojo]

Virtually all of them. I don't think there are any non-sql databases still in anything close to common usage.

One of the big ones you forgot is IBM DB2

 

[Titan]

Does Paradox?

 

[DT4K]

SQLite, which is used a lot in the Apple world.
Lots of iPhone apps use SQLite either directly, or indirectly, through Core Data.

 

[Mana]

If you know SQL you can use virtually any database out there. That said, there are usually slight differences between the different variants of SQL.

 

[Tech_savy]

Check this..

http://www.theukwebdesigncompany.com/articles/types-of-databases.php

 

[KB]

Using ODBC drivers you can even retrieve information using SQL from non-databases like txt files, excel files etc.

 

[chusteczka]

SQL is a standardized language.

SQL was adopted as a standard by the American National Standards Institute (ANSI) in 1986 as SQL-86[20] and International Organization for Standardization (ISO) in 1987. The original SQL standard declared that the official pronunciation for SQL is "es queue el".[1] Many English-speaking database professionals still use the nonstandard[21] pronunciation /ˈsiːkwəl/ (like the word "sequel"). SEQUEL was an earlier IBM database language, a predecessor to the SQL language.[22]

Until 1996, the National Institute of Standards and Technology (NIST) data management standards program certified SQL DBMS compliance with the SQL standard. Vendors now self-certify the compliance of their products.[23]

Three database query languages, off the top of my head, that do not conform to the SQL standards are IBM Nomad (mainframe/Cobal), SAP, and Ab Initio.

This webpage may be of interest.
Comparison of different SQL implementations