what is key. give answer if you are genius
Answers
A key is a field, or combination of fields, in a database table used to retrieve and sort rows in the table based on certain requirements. Keys are defined to speed up access to data and, in many cases, to create links between different tables.
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in biology
an identification key is a printed or computer-aided device that aids the identification of biological entities, such as plants, animals, fossils, microorganisms, and pollen grains.
in english
1a : a usually metal instrument by which the bolt of a lock is turned. b : any of various devices having the forjm or function of such a key a key for winding a clock. 2a : a means of gaining or preventing entrance, possession, or control. b : an instrumental or deciding factor the keyto her success
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