Oracle Database
MentionedDatabase
Also known as: Oracle
Commercial relational database that has been the standard in large enterprises for decades.
Oracle Database, explained
Written by EduVerseWhat it is
Oracle Database is a commercial relational database from Oracle Corporation. You talk to it with SQL plus PL/SQL, Oracle’s own language for stored procedures and packages, and it has extensive features for clustering, backup and recovery of very large systems.
Why teams use it
Banks, insurers and governments have run their core systems on Oracle for decades, and those systems are still maintained and extended. Teams choose it, or keep it, for its stability and vendor support. New projects more often pick PostgreSQL, which covers most needs without commercial licensing.
An example from work
You run a query in a legacy project and get ORA-00942: table or view does not exist, even though the table is definitely there. It belongs to another schema, so you write APP_OWNER.CUSTOMERS instead of CUSTOMERS, or ask the DBA for a grant or a synonym.
Our own explanation, not a quote from the book.
In the book
Sentences from The Software Realm, Decoded that mention Oracle Database, exactly as printed.
1 more passages about Oracle Database in the full book
Read every conversation where Oracle Database comes up, with the interactive slides and demos.
Where it fits
Banking, government and enterprise systems
Coverage in the book
Mentioned as part of the wider landscape, without in-depth coverage.
