KEY COMPONENTS OF A DBMS ARCHITECTURE

DATABASE ENGINE

central component of a DBMS

DATABASE ENGINE

It is responsible for interpreting and executing user requests, managing data storage, and retrieval, and ensuring data integrity and security

DATABASE ENGINE

It employs various algorithms and data structures to optimize query processing and data access.

STORE MANAGER

responsible for the physical storage of data on the computer’s storage devices, such as hard disks or solid-state drives

STORAGE MANAGER

It handles tasks like file organization, indexing, and buffer management to optimize data access retrieval

QUERY PROCESSOR

is responsible for parsing, optimizing, and executing user queries written in a database query language, such as SQL

QUERY PROCESSOR

it analyzes the query, generates an efficient execution plan, and coordinates the various components to retrieve the requested data.

TRANSACTION MANAGER

is responsible for parsing, optimizing, and executing user queries written in database query language, such as SQL

TRANSACTION MANAGER

responsible for ensuring ACID (Atomicity, Consistency, Isolation, Durability) properties of database transactions

TRANSACTION MANAGER

it manages concurrency control, deadlock detection, and recovery mechanisms to maintain data consistency and integrity in distributed systems

TRANSACTION MANAGER

This coordinates multiple operations across different resources, such as databases or message queues, to ensure they are treated as a single, indivisible unit of work

CONCURRENCY CONTROL

responsible for managing simultaneous access to the database by multiple users or processes. It ensures that concurrent transitions do not interfere with each other and that data integrity is maintained, even in the face of concurrent operations