This repository contains SQL queries on Northwind database. The aim is to demonstrate database querying techniques and create a guide for those who want to learn.
- Northwind : Contains tables representing key commercial business processes.
- CREATE TABLE and ALTER TABLE: Creating and modifying tables.
- SELECT, WHERE and LIKE: Selecting and filtering data.
- GROUP BY and HAVING: Grouping and filtering on groups.
- JOIN Operations: Table joining and data integration.
- CASE Usage: Categorizing data.
- Aggregate Functions: COUNT, SUM, AVG, MIN, MAX usages.
You can download the SQL file and run it in your own database:
psql -U fatmanur -d dvdrental -f northwind_queries.sql