→Introduction to Relational Databases
→SQL Syntax & Basic Commands (SELECT, INSERT, UPDATE, DELETE)
→Filtering, Sorting, and Aggregating Data
→Joins & Relationships Between Tables
→Subqueries & Nested Queries

→Understanding Normal Forms (1NF, 2NF, 3NF, BCNF)
→Eliminating Redundancy & Enhancing Performance
→Indexing Strategies & Query Optimization
→Partitioning & Sharding Techniques
→Handling Large-Scale Databases Efficiently

→User Roles & Permissions Management
→Encryption & Data Privacy Techniques
→Backup & Recovery Strategies
→Transaction Management & ACID Properties
→Preventing SQL Injection & Security Threats

→Stored Procedures & Functions
→Views & Materialized Views
→Triggers & Event-Driven Actions
→Working with NoSQL & Hybrid Databases
→Performance Tuning & Execution Plans

→Introduction to NoSQL (Document, Key-Value, Column-Family, Graph)
→SQL vs. NoSQL: Choosing the Right Database
→Polyglot Persistence & Hybrid Database Systems
→Using JSON/XML in SQL Databases
→Integrating SQL with NoSQL (MongoDB, Cassandra, Redis)

→Data Warehousing Concepts (OLTP vs. OLAP)
→Star & Snowflake Schemas
→ETL (Extract, Transform, Load) Processes
→Working with Big Data (Hadoop, Spark SQL)
→Business Intelligence & Reporting (SQL for Dashboards)

→SQL in the Cloud (AWS RDS, Azure SQL, Google Cloud SQL)
→Serverless Databases (AWS Aurora, Firebase)
→Distributed SQL (CockroachDB, Google Spanner)
→Replication & High Availability (Master-Slave, Multi-Master)