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Database Guide

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A database, or database management system, is a type of software for accessing, managing and updating organized collections of data. They are a fundamental tool that underlies most information technology. Databases implement efficient data storage and retrieval, relational models, constraints, transactions, concurrency, database languages, APIs, security, migration tools, analysis tools, data management tools, backup, restore and other features that are useful for building, using and maintaining large collections of data. The following are a few key database concepts.


This is the complete list of articles we have written about databases.
Database Index
Candidate Key
Data Purging
Foreign Key
Federated Databases
Primary Key
Operational Database
Referential Integrity
Unique Constraint
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