SQL Syntax Reference: https://www.tutorialspoint.com/sql/index.htm
PostgreSQL 9 (PG Admin 3) Installation Reference : Click here
PostgreSQL 12 (PG Admin 4) Installation Reference: Click here
Video Tutorial - Experiment 8 - Video tutorials for join clause
Video Lecture - Experiment 5 - Operators and Clauses
Video Lecture - DCL Queries - Experiment 9 - DCL Queries
Experiment 7 - Set Operations - Introduction to Set Operations in SQL
Experiment 6 - Aggerate Functions in SQL - Introduction to aggregate functions in SQL.