Glossary of Terms

Database Management Systems

Keyword Definition
Backup The process of creating copies of data to ensure its availability in case of data loss or corruption.
Data Integrity The accuracy, consistency, and reliability of data stored in a database, ensuring it is valid and trustworthy.
Data Redundancy The storage of the same data in multiple places within a database, which can lead to inconsistency and inefficiency.
Data Warehousing The process of collecting and managing data from various sources for business intelligence and analysis purposes.
Database Administrator A professional responsible for managing and maintaining a database system.
Database Management Systems A software system that manages databases and allows users to access and manipulate data.
Database Security The protection of electronic databases from unauthorized access, use, disclosure, disruption, modification, or destruction.
Database Storage Engine A software program or module that is responsible for managing how data is stored, organized, and accessed in a database.
Index A data structure that improves the speed of data retrieval operations in a database.
Indexing The technique of creating data structures, called indexes, to improve the speed of data retrieval operations in a database.
Normalization The process of organizing data in a database to eliminate redundancy and improve efficiency.
Query A request for data from a database using a specific set of criteria.
Query Optimization The process of selecting the most efficient execution plan for a query in a database management system.
Relational Database A type of database that organizes data into tables with predefined relationships between them.
SQL Structured Query Language, a programming language used to manage and manipulate databases.
Sqlite A lightweight relational database management system (RDBMS) that uses its own storage engine and is contained in a single disk file without a separate server process.
Transaction An atomic set of database operations that must be executed as a whole, ensuring data consistency.