PostgreSQL- Alter commands, Part1-Sequence generator.

Concatenate string with sequence generated, default, drop and truncate

PostgreSQL part 1: Datetime functions and manipulations

PostgreSQL - Part2, Datetime manipulations with basic queries on Flight dataset

Copying Data Between Tables

PostgreSQL-Part 1:Update and Delete with Exists

Part 2-Update, Delete with EXIST and IN using simple subqueries.

PostgreSQL: Simple SELECT queries in WITH Clause

PostgreSQL - Data Modifying Statements in WITH CLAUSE(update and delete)

PostgreSQL - generate series function with select queries