Alx assignment: add SQL exercise solutions for filtering queries in Northwind database#21
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RealElvince wants to merge 12 commits intojpwhite3:mainfrom
Open
Alx assignment: add SQL exercise solutions for filtering queries in Northwind database#21RealElvince wants to merge 12 commits intojpwhite3:mainfrom
RealElvince wants to merge 12 commits intojpwhite3:mainfrom
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Pull Request Description
Summary
This pull request introduces solutions to several SQL query exercises using the Northwind SQLite database. The work focuses on practicing filtering data using WHERE, IN, logical operators (AND/OR), and conditions on numeric and boolean-like fields.
Changes Included
Added SQL queries to retrieve:
Names of customers located in Germany.
Products with a Unit Price greater than 30 and marked as discontinued.
Contact names and phone numbers of customers from USA or Canada.
Orders placed by VINET, QUICK, or SUPRD, shipped via shipper 1 or 2.
Challenge query: Employees with the job title Sales Representative or Sales Manager based in London.
Motivation
This pull request contributes to improving SQL querying proficiency, specifically using filtering, logical operators, and pattern matching techniques in analytics workflows.
Testing / Validation
All queries were executed successfully against the Northwind SQLite database
Query results verified manually to ensure correct filtering logic
Execution environment: Jupyter Notebook using SQL Magic (%sql and %%sql)