A database can be roughly defined as a structure consisting of 
1. A collection of information (the data), 
2. A collection of queries that can be submitted, and 
3. A collection of algorithms by which the structure responds to queries, searches the data, and returns the results. 
 
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References
Petkovšek, M.; Wilf, H. S.; and Zeilberger, D. A=B.
 Wellesley, MA: A K Peters, p. 48, 1996. http://www.cis.upenn.edu/~wilf/AeqB.html.Referenced
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Database
Cite this as:
Weisstein, Eric W. "Database." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Database.html
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