The Oracle RDBMS is available on many different operating system platforms including Windows and UNIX.

 Oracle is a relational DBMS - even the data dictionary is simply a collection of tables of data along with indexes and other objects such as sequences and triggers. 

 SQL has a basic grammar and syntax.

 The functionally of the SQL language is virtually identical across these operating system platforms.

 Using SQL does not require programming experience, but programming experience can help you conceptualize what a particular SQL command will accomplish.

The keywords for SQL queries that retrieve data are SELECT, FROM, WHERE, and ORDER BY. Other command options also exist, but these are the basic ones.