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wtf is sql-sales-management-system?

pushkarnegi-dev/sql-sales-management-system — explained in plain English

Analysis updated 2026-05-18

3TSQLAudience · dataComplexity · 2/5Setup · moderate

TL;DR

A SQL Server practice project that models a sales business with customers, products, orders, and reporting queries covering joins, aggregates, and views.

Mindmap

mindmap
  root((SQL Sales System))
    What it does
      Sales database
      Business queries
      SQL views
    Tech stack
      SQL Server
      SSMS
      T-SQL
    Use cases
      SQL practice
      Interview prep
      Reporting examples
    Audience
      SQL learners
      Students
    Structure
      8 tables
      10 script files
      Screenshots

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Why would anyone build with this?

REASON 1

Practice writing SQL joins, aggregates, and filtering queries against a realistic sales dataset.

REASON 2

Study for SQL interview questions using ready-made scripts covering filtering, grouping, and set operators.

REASON 3

See example business reports like top-selling products and high-value customer analysis built entirely in SQL.

REASON 4

Use as a reference project structure for organizing a multi-script SQL learning repository.

What's in the stack?

SQL ServerSSMST-SQLGit

How it stacks up

pushkarnegi-dev/sql-sales-management-systempushkarnegi-dev/employee-management-system-sqldmcteknoloji/sql-server-2025-kitap
Stars3217
LanguageTSQLTSQLTSQL
Setup difficultymoderateeasymoderate
Complexity2/51/52/5
Audiencedatageneraldata

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · moderate Time to first run · 30min

Requires Microsoft SQL Server and SSMS installed locally to run the scripts.

Wtf does this do

This project is a SQL learning exercise built around a fictional sales business. It uses Microsoft SQL Server to manage customers, products, suppliers, employees, orders, and the details of each order. The goal is to show how a set of SQL concepts work together on a realistic business dataset, rather than teaching each concept in isolation. The database has eight linked tables covering categories, suppliers, customers, employees, shippers, products, orders, and order details, connected with primary and foreign keys. On top of that structure sit more than 50 SQL queries organized into numbered scripts, starting with basic selects and filtering, moving through joins, set operators like union and intersect, string and date functions, grouping and having clauses, and views. The final scripts apply all of this to business questions such as finding best selling products, identifying high value customers, and building revenue reports. To try it, you clone the repository, open it in SQL Server Management Studio, and run the numbered SQL scripts in order, starting with creating the database and tables, then inserting sample data, then working through each topic script. The README includes screenshots of query results for each stage so you can see what the output should look like before running anything yourself. This is aimed at people learning SQL, particularly those studying for interviews or coursework that covers joins, aggregate functions, and reporting queries against a database that resembles a real store. It is not a production application. There is no user interface, no backend server, and no way to interact with the data outside of SQL Server itself. The author lists possible future additions such as stored procedures, triggers, common table expressions, window functions, indexes, and transactions, none of which are implemented yet. The technologies involved are Microsoft SQL Server, SQL Server Management Studio, Visual Studio Code, and Git. The project carries a license file, though the specific terms are not described in the README itself.

Yoink these prompts

Prompt 1
Walk me through the SQL Sales Management System repo's script order and explain what each of the 10 numbered SQL files teaches.
Prompt 2
Using this repo's Customers, Orders, and OrderDetails tables, write a query to find the top 5 customers by total spend.
Prompt 3
Explain the difference between INNER JOIN, LEFT JOIN, and RIGHT JOIN using the Orders and Customers tables from this SQL Sales Management System project.
Prompt 4
Show me how to add a stored procedure to this project that returns monthly revenue by category.
Prompt 5
Convert one of this repo's GROUP BY and HAVING queries into an equivalent query using a window function.

Frequently asked questions

wtf is sql-sales-management-system?

A SQL Server practice project that models a sales business with customers, products, orders, and reporting queries covering joins, aggregates, and views.

What language is sql-sales-management-system written in?

Mainly TSQL. The stack also includes SQL Server, SSMS, T-SQL.

How hard is sql-sales-management-system to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is sql-sales-management-system for?

Mainly data.

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