DBMS Architecture
Three-Tier Architecture
- Presentation Layer: User interface, where users interact with the database.
- Application Layer: Business logic, where data is processed and validated.
- Data Access Layer: Database, where data is stored and retrieved.
Components
- Database Engine: Core component that manages data storage, retrieval, and manipulation.
- Database Schema: Defines the structure of the database, including tables, relationships, and constraints.
- Query Processor: Responsible for executing queries and retrieving data.
Types of DBMS Architecture
- Centralized Architecture: Database is stored on a single server, and users access it remotely.
- Distributed Architecture: Database is spread across multiple servers, and data is accessed and managed distributedly.
- Client-Server Architecture: Database is stored on a server, and clients access it remotely.
Benefits
- Improved Performance: DBMS architecture is designed to optimize performance and efficiency.
- Scalability: DBMS architecture can be scaled to meet growing demands.
- Data Security: DBMS architecture provides mechanisms for securing data and controlling access.
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