Database Management System & Rdbms| Stored procedure | Malayalam Tutorial

Introduction

This tutorial will guide you through the fundamental concepts of Database Management Systems (DBMS) and Relational Database Management Systems (RDBMS), including the use of stored procedures. Whether you're a student in computer science or anyone interested in understanding databases, this guide will provide you with essential knowledge and practical insights.

Step 1: Understanding Database Management Systems

• Definition of DBMS: A software application that interacts with the user, applications, and the database itself to capture and analyze data.

Functions of a DBMS

• Data storage, retrieval, and management.
• Support for data integrity and security.
• Backup and recovery capabilities.

Types of DBMS

• Hierarchical
• Network
• Relational
• Object-oriented

Step 2: Exploring Relational Database Management Systems

• Definition of RDBMS: A type of DBMS that stores data in a structured format using rows and columns.

Key Features of RDBMS

• Uses Structured Query Language (SQL) for database access and management.
• Supports relationships between tables, allowing for complex queries.
• Enforces data integrity through primary and foreign keys.

Step 3: Learning about SQL

• What is SQL: A standard language for managing and manipulating databases.

Basic SQL Operations

• SELECT: Retrieve data from one or more tables.

  SELECT column1, column2 FROM table_name;
  

• INSERT: Add new records to a table.

  INSERT INTO table_name (column1, column2) VALUES (value1, value2);
  

• UPDATE: Modify existing records.

  UPDATE table_name SET column1 = value1 WHERE condition;
  

• DELETE: Remove records from a table.

  DELETE FROM table_name WHERE condition;
  

Step 4: Understanding Stored Procedures

• Definition of Stored Procedures: A set of SQL statements that can be stored and reused in the database.

Benefits of Using Stored Procedures

• Improved performance by reducing network traffic.
• Enhanced security by controlling access to the data.
• Simplifies complex operations through encapsulation.
• Creating a Stored Procedure:

  CREATE PROCEDURE procedure_name AS
  BEGIN
      -- SQL statements
  END;
  

Step 5: Practical Applications of Stored Procedures

Example Use Cases

• Automating repetitive tasks like data cleanup.
• Implementing business logic directly in the database layer.
• Improving data integrity through controlled data access.

Conclusion

In this tutorial, we covered the core concepts of DBMS and RDBMS, explored SQL operations, and delved into the creation and use of stored procedures. By understanding these concepts, you will be better equipped to handle database management tasks effectively. For further learning, consider practicing SQL queries and exploring more complex stored procedures to solidify your knowledge.