DBMS
DBMS stands for Database Management System. It is a software system that provides an interface for interacting with a database allowing users to store, retrieve, update, and manage data in a structured and organized manner.
This competency area includes an understanding of the concepts of concurrent access control, transaction management, recovery, backup management, user management and authentication, query optimization and indexing, data modeling, and schema design.
Key Competencies:
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Concurrent Access Control - Allow multiple users to access the database at the same time while ensuring consistency and avoiding conflicts.
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Transaction Management - Ability to manage transactions and ensure that they are executed in a consistent and reliable manner.
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Recovery and Backup Management - Ensure that data can be recovered in case of failure and schedule regular backups to minimize data loss.
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User Management and Authentication - Control database access for different users with different levels of authorization.
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Query Optimization - Ability to use various techniques for optimizing data retrieval and making it more efficient, such as indexing data for faster access.
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Indexing - Knowledge of tree-structured and hash-based indexing techniques.
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Schema Refinement and Normalization - Know techniques to reduce data redundancy.