Oracle is a relational DBMS (Database Management System) created by Oracle Corporation. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java.
Oracle makes plethora of documentation available at tahiti.oracle.com.
Tagging:
Questions about SQL should be tagged sql. If the question applies to an Oracle database it should probably also be tagged oracle.
Questions about PL/SQL should be tagged plsql as well as oracle.
Questions specific to a particular database version may be tagged with a version tag such as oracle11g-r2, oracle-11g, oracle-10g or oracle-9i, but they should also be tagged oracle.
Questions applicable to 11.1.0.6 through 11.1.0.7 should be tagged both oracle-11g and oracle.
Questions applicable to 11.2.0.1 through 11.2.0.2 should be tagged both oracle-11g-r2 and oracle.
Questions applicable to other versions should be tagged as oracle-10g, oracle-9i or oracle-8i as well as oracle.
