Oracle Database is one of the most popular databases in the world. It’s targeted at large organisations, and has many features to allow administrators manage the database and for developers to improve their query performance.
The latest version of Oracle is 20c. A free version of Oracle is available, called Oracle Express, and their Standard and Enterprise versions are licensed products.
A range of articles and other resources to get you started with Oracle SQL.
A list of definitive guides on many of the SQL keywords.
Further Learning: Functions
All about functions in Oracle database.
Further Learning: Objects
Learn all about the different objects available in Oracle database.
More features and topics in SQL and Oracle database.
Oracle Certified Associate
A guide and FAQ for the Oracle Certified Associate certification (1Z0-071)
Interview Questions and Answers
A list of 69 interview questions and answers, plus interview tips.
Transactions and Isolation Levels
An explanation of transactions in SQL and what isolation levels are.
A collection of articles detailing how to do common tasks in SQL queries.
A range of articles that explain how to do certain things in Oracle SQL Developer.
A list of guides and collations of different tools for database developers and administrators.