Referential integrity is a relational database concept, which states that table relationships must always be consistent. In other words, any foreign key field must agree with the primary key that is referenced by the foreign key. Thus, any primary key field changes must be applied to all foreign keys, or not at all. The same restriction also...
If there's anything you need to prove to land a tech job, it's the ability to stay ahead of the curve. Using social media is one way to show employers you have what it takes.
Tara Struyk is a senior editor at Techopedia.com and a freelance editor, blogger and writer for hire. She specializes in writing about personal finance, investing, careers and consumer technology. Likes: The Internet, espresso and running. Dislikes: Typos, debt and domestic vehicles. Full Bio
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