A comprehensive data landscape analysis demonstrating SQL foundations and business intelligence techniques

Executive Summary

Northwind Traders operates as an international trading company with 91 customers across 21 countries and a product catalogue of 77 items. This analysis establishes the data foundation for subsequent performance and operational analytics.

Business Intelligence Assessment

Company Scale & Operations

• Customer Base: 91 active customers spanning 21 countries
• Product Portfolio: 77 products across 8 categories
• Order Volume: 830 historical orders processed
• Workforce: 9 employees managing operations
• Supply Chain: 29 suppliers across 16 countries

Geographic Market Presence

Analysis reveals international operations with strongest customer concentration in USA, France and Germany. Supplier diversity spans 16 countries, indicating robust supply chain resilience.

Data Coverage & Quality

Historical data spans 04.07.96 - 06.05.98, providing almost 2 years of operational history suitable for trend analysis. Comprehensive data quality validation confirms:

• ✅ Complete customer-order referential integrity
• ✅ Logical date consistency across order lifecycle
• ✅ Valid product pricing and inventory data

SQL Techniques Demonstrated

Database Discovery

• Information schema queries for systematic table inventory