A database that maintains a set of separate, related files (tables), but combines data elements from the files for queries and reports when required. The concept was developed in 1970 by Edgar Codd, ...
There are many ways to describe a database: the role it plays in a distributed architecture, the various internal components that make it work, and the various levels that define specific roles and ...
A very popular relational database management system (DBMS) from Oracle, introduced in 1978. Oracle was the first database product to run on a huge variety of hardware from micro to mainframe, giving ...
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