Module 1: Introduction to PostgreSQL & PL/pgSQL

• What is PostgreSQL?
• Why PL/pgSQL?
• Setting up PostgreSQL Environment
• Basic SQL Review (SELECT, INSERT, UPDATE, DELETE)

Module 2: PL/pgSQL Basics

• Anonymous Blocks
• Variables and Constants
• Data Types in PL/pgSQL
• Conditional Statements (IF-THEN-ELSEIF-END IF)
• Looping Constructs (LOOP, WHILE, FOR)

Module 3: Functions and Procedures

• Creating and Executing Functions
• Function Overloading
• Stored Procedures vs. Functions
• Parameters (IN, OUT, INOUT)
• Return Types (SCALAR, TABLE, VOID)

Module 4: Triggers

• Introduction to Triggers
• BEFORE and AFTER Triggers
• ROW-level and STATEMENT-level Triggers
• Trigger Functions
• Practical Examples of Triggers

Module 5: Error Handling & Debugging

• Exception Handling (BEGIN...EXCEPTION...END)
• SQLSTATE and SQLERRM
• Custom Error Messages
• Debugging Techniques in PL/pgSQL

Module 6: Advanced PL/pgSQL Concepts

• Cursors (Implicit and Explicit)
• Dynamic SQL (EXECUTE)
• Records and Collections
• Performance Tuning PL/pgSQL Code

Module 7: Real-world Projects & Best Practices

• Developing a Mini Project using PL/pgSQL
• Code Organization and Modularity
• Security Considerations
• Interview Preparation Tips