When databases became available for the personal computer in the mid-1980s, they quickly gained a mystique as the ultimate productivity applications. Despite their widespread use, in some ways they ...

So lets say I have 5 databases, all with the same schema, but different data. I want to be able to build reports based on the data in all of those databases. How could I construct a view which would ...

Test-driven software must often drop, create and populate database tables with records before it runs a suite of unit tests. For this reason, the ability to have JPA frameworks -- such as EclipseLink ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

AUSTIN, Texas, Jan. 13, 2021 /PRNewswire/ -- Oracle today announced that Oracle Database 21c, the latest version of the world's leading converged database, is available on Oracle Cloud, including the ...

It is rare to find an implemented database devoid of reference tables. Reference tables provide valid values for drop-down lists and in a slightly obtuse way, also allow for expression of a domain or ...