DBMS Architecture Explained PDF

Draw and explain the architecutre of DBMS A **Database Management System (DBMS)** provides an environment to manage databases efficiently. DBMS architecture defines how the system\'s components interact with each other **Components of DBMS Architecture**  **Database Engine**: - The core of th...

Draw and explain the architecutre of DBMS A **Database Management System (DBMS)** provides an environment to manage databases efficiently. DBMS architecture defines how the system\'s components interact with each other **Components of DBMS Architecture**  **Database Engine**: - The core of the DBMS, responsible for data storage, retrieval, and updates. - Executes SQL queries and manages database transactions. - Ensures efficient data processing and access.  **Query Processor**: - Acts as the translator between user queries (usually written in SQL) and the database engine. - Breaks down complex queries into understandable instructions for the system. - **Sub-components**: - **DML Compiler**: Compiles Data Manipulation Language queries into low-level instructions. - **Query Optimizer**: Improves the efficiency of query execution by finding the best way to execute a given query.  **Transaction Manager**: - Manages transactions, ensuring they follow the ACID properties: - **Atomicity**: Ensures that a transaction is either fully completed or fully rolled back. - **Consistency**: Guarantees that transactions transform the database from one valid state to another. - **Isolation**: Ensures that concurrent transactions do not interfere with each other. - **Durability**: Once a transaction is committed, the changes persist even in the event of a system failure.  **Storage Manager**: - Manages how the data is physically stored on the disk or other storage media. - Organizes files, tables, and indexes to optimize data retrieval and modification. - Handles memory management and data caching.  **Authorization and Integrity Manager**: - Controls user access by ensuring that only authorized users can perform certain operations. - Enforces integrity constraints to maintain data accuracy and consistency. - Examples of integrity constraints include **primary key**, **foreign key**, and **check constraints**. question FYCS / FYIT Page1 Page2 Page3 ------------------------------------------- ------------- ----------- --------- --------- Draw and explain the architecutre of DBMS FYCS 2 marks 3 marks     FYIT 2.5 marks 3 marks 2 marks