Database

1- Introduction to Databases 2- Relational Model 3- Normalization Principles 4- Data Definition 5- Data Manipulation 6- Query Optimization 7- Joins: INNER, LEFT, RIGHT, FULL, and Self-Joins for Complex Data Retrieval 8- Aggregations and Subqueries 9- Stored Procedures, Functions, and Triggers for Reusable Backend Logic 10- ACID Transactions 11- Concurrency Issues 12- Locking Mechanisms and Deadlock Prevention 13- ER Diagrams and Schema Design 14- Indexing Strategies 15- Partitioning and Sharding Basics for Handling Large-Scale Backend Data 16- Connection Management 17- Query Building 18- Performance Tuning 19- Key-Value and Document Stores 20- Column-Family and Graph Databases 21- Hybrid Approaches 22- Authentication and Authorization 23- SQL Injection Prevention, Encryption, and Auditing 24- Database 25- Backup, Recovery, and Monitoring