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all about terms related to database management

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19 Terms

Created by: paul01234

Number of Blossarys: 51

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A superkey which has a set of attributes whose values ensure the unique identification of the rows in a table. It is the principal means of identifying tuples in a relation. Its value is never, or at ...

Domain: Software; カテゴリー: Database applications

The process of generating a set of relation schemas that allows the storage of information without unnecessary redundancy while still allowing the easy retrieval of information.

Domain: Software; カテゴリー: Database applications

It is an attribute used to sort and identify data in the database. Types of database keys are primary keys, candidate keys, and foreign keys.

Domain: Software; カテゴリー: Database applications

This refers to the collection of information stored in the database at a specific time or moment. A new instance is created when information is inserted, deleted, or updated in the database.

Domain: Software; カテゴリー: Database applications

A set of attributes in a referencing relation. The value of the foreign key attributes are sure to occur as the primary key value of a row or tuple in the referenced relation or table.

Domain: Software; カテゴリー: Database applications

This term refers to any distinctly identifiable item in a database. This may refer to people, locations, or goods, to name a few.

Domain: Software; カテゴリー: Database applications

An organized collection of data which contains information relevant to an enterprise. A database is typically in a digital form.

Domain: Software; カテゴリー: Database applications

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