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Database Terms

QuestionAnswer
A unique identifier for each record Primary Key
An attribute of one table that is related to the primary key of another table. Foreign Keys
A set of data that describes and gives information about other data. Metadata
A virtual relation defined by the database administrator in order to keep subjects from viewing certain data. View
An intersection of a row and a column Cell
A collection of related data items Record
A collection of records of the same type File
The overall Structure and Design of the database. Schema
A row in a two-dimensional database Tuple
A column in a two-dimensional database Attribute
The process of removing duplicates and ensuring that each attribute only describes the primary key Normalization
States that the primary key cannot be NULL Entity Integrity
Manages and controls a database DBMS
Central repository of data elements and their relationship Data Dictionary
Ensures that data entered into a row reflects an allowable value Semantic Integrity
Every foreign key in a secondary table has a primary key in the parent table. Referential Integrity
Used to create, modify, and delete tables Data Definition Language (DDL)
Used to query and update data stored in tables Data Manipulation Language (DML)
Created by: Dks0512
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