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Hierarchy of Data

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Description of the hierarchy of data you would expect to find in a video store database. Distinguish between fields, records, and files, and give relevant examples of each.

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Solution Summary

This solution goes into detail about the hierarchy of data in a database belonging to a video store.

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In any database, data is organized in a hierarchy, which is called as hierarchy of data. At the bottom of the hierarchy, we have the smallest data-storing unit called a bit. A bit is represented by either a 0 (off) or a 1 (on). Bits are grouped to form a byte. A byte is used to represent one character, number, or symbol. Bytes are further grouped into a field, such as a name or date. Related fields are grouped to form a record and related records are grouped to form a file. Finally, related files are organized into a database.

In case of a video store we can think of following examples of the data hierarchy:

Bit: It is the smallest unit, which is used to store information in the on and off form and ...

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