sql

 

📌 Module 1: Introduction to SQL

🔹 What is SQL?
🔹 Database vs. DBMS vs. RDBMS
🔹 Types of Databases (SQL vs. NoSQL)
🔹 Popular SQL Databases (MySQL, PostgreSQL, SQLite, Oracle, MS SQL Server)
🔹 Installing MySQL/PostgreSQL & Setting Up Database

✅ Hands-on:
✔️ Install MySQL/PostgreSQL & Set Up a Test Database

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📌 Module 2: SQL Basics - Data Retrieval

🔹 Understanding Database Tables & Schemas
🔹 SELECT Statement – Retrieving Data
🔹 Using WHERE Clause for Filtering
🔹 ORDER BY for Sorting Results
🔹 Using LIMIT & OFFSET for Pagination

✅ Hands-on:
✔️ Retrieve Employee Details from a Database

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📌 Module 3: SQL Functions & Aggregation

🔹 Built-in Functions (COUNT(), SUM(), AVG(), MIN(), MAX())
🔹 Using GROUP BY for Aggregation
🔹 HAVING Clause for Filtering Groups
🔹 Using DISTINCT for Unique Values

✅ Hands-on:
✔️ Find Total Salary, Average Salary, and Count of Employees per Department

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📌 Module 4: SQL Joins & Relationships

🔹 Understanding Primary Key & Foreign Key
🔹 Types of Joins:
✔️ INNER JOIN – Matching Records
✔️ LEFT JOIN – Keeping Left Table Records
✔️ RIGHT JOIN – Keeping Right Table Records
✔️ FULL JOIN – Combining All Records
🔹 Using SELF JOIN & CROSS JOIN

✅ Hands-on:
✔️ Retrieve Employee Details Along with Their Department Name

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📌 Module 5: SQL Data Manipulation (DML)

🔹 Inserting Data with INSERT INTO
🔹 Updating Data with UPDATE
🔹 Deleting Data with DELETE
🔹 Using Transactions (COMMIT, ROLLBACK)

✅ Hands-on:
✔️ Insert, Update, and Delete Employee Records in a Table

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📌 Module 6: SQL Data Definition (DDL) & Constraints

🔹 Creating Tables with CREATE TABLE
🔹 Altering Tables (ALTER TABLE, DROP COLUMN)
🔹 Applying Constraints (NOT NULL, UNIQUE, CHECK, DEFAULT, PRIMARY KEY, FOREIGN KEY)

✅ Hands-on:
✔️ Create an Employee Table with Constraints

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📌 Module 7: Advanced SQL Queries

🔹 Subqueries & Nested Queries
🔹 Using EXISTS & NOT EXISTS
🔹 Window Functions (ROW_NUMBER(), RANK(), DENSE_RANK(), LEAD(), LAG())
🔹 Common Table Expressions (CTE) using WITH

✅ Hands-on:
✔️ Find the Second-Highest Salary using RANK()

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📌 Module 8: SQL Stored Procedures & Functions

🔹 What are Stored Procedures?
🔹 Creating & Executing Stored Procedures
🔹 Creating & Using User-Defined Functions (UDFs)
🔹 Working with Cursors

✅ Hands-on:
✔️ Create a Stored Procedure to Calculate Employee Bonus

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📌 Module 9: SQL Performance Optimization

🔹 Understanding Indexing & Types of Indexes
🔹 Using EXPLAIN to Analyze Query Performance
🔹 Query Optimization Techniques
🔹 Partitioning Large Tables

✅ Hands-on:
✔️ Optimize a Query Using Indexes

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📌 Module 10: SQL Security & User Management

🔹 Creating & Managing Users (CREATE USER, GRANT, REVOKE)
🔹 Role-Based Access Control (RBAC)
🔹 Preventing SQL Injection Attacks

✅ Hands-on:
✔️ Create User Accounts with Different Privileges

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📌 Module 11: SQL with Python & Real-World Projects

🔹 Connecting SQL Database with Python
🔹 Performing CRUD Operations Using Python (sqlite3, mysql-connector)
🔹 Real-World Project:
✔️ Build a Library Management System using SQL & Python

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🚀 Final Summary & Next Steps

✅ Learned SQL from Basics to Advanced
✅ Practiced with Real-World Projects
✅ Explored Performance Optimization & Security

Would you like hands-on exercises or real-world project ideas for SQL? Let me know! 🚀