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harina [27]
3 years ago
10

What is the difference between a key and a superkey?

Computers and Technology
1 answer:
netineya [11]3 years ago
4 0

Answer:

Answered below

Explanation:

A key is a single or combination of many attributes that enable us pull a row of data from a table. Keys are identifiers used to get data seamlessly from the database. A key can be a primary key, secondary key, control key, or super key. A super key is a key or set of attributes use to identify tuples in a database. It can contain extra attributes not necessary for uniquely identifying a database.

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Further Explanation:

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The files or instructions that are needed to start up a computer are usually unchangeable as they always have to be the same. These type of instructions are stored in ROM. When he computer is turned on, the instructions needed to start the computer are loaded into the main memory from the ROM.

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Learn more at:

  • brainly.com/question/10196212
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