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* '''Relational algebra:''' Each row or record in the above table meets the standard definition of a [[tuple]] under [[relational algebra]] (the above example depicts a series of 3-tuples). Additionally, the first row specifies the [[Tuple#Field_names|field names]] that are associated with the values of each row.
* '''Database management system:''' Since the formal operations possible with a text file are usually more limited than desired, the text in the above example would ordinarily represent an intermediary state of the data prior to being transferred into a [[database management system]].
==References==
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