https://github.com/khalidkhankakar/sql-for-datascience

This repository is your all-in-one resource to learn and apply Structured Query Language (SQL) specifically for data analysis, business intelligence, and data science workflows.
https://github.com/khalidkhankakar/sql-for-datascience

data-science database datacleaning mysql mysql-database sql

Last synced: about 2 months ago
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This repository is your all-in-one resource to learn and apply Structured Query Language (SQL) specifically for data analysis, business intelligence, and data science workflows.

• Host: GitHub
• URL: https://github.com/khalidkhankakar/sql-for-datascience
• Owner: khalidkhankakar
• Created: 2025-07-28T06:54:49.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2025-10-07T11:49:32.000Z (9 months ago)
• Last Synced: 2025-10-07T13:16:50.549Z (9 months ago)
• Topics: data-science, database, datacleaning, mysql, mysql-database, sql
• Language: Jupyter Notebook
• Homepage:
• Size: 358 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

          
# 📊 SQL for Data Science

Master SQL from fundamentals to advanced analytics — tailored for data science!

This repository is your all-in-one resource to learn and apply **Structured Query Language (SQL)** specifically for **data analysis**, **business intelligence**, and **data science workflows**. Whether you're a beginner or upskilling for analytics roles, this repo covers everything you need to become confident in SQL.

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## ✅ Topics Covered

- **SQL Basics**  

  `SELECT`, `WHERE`, `ORDER BY`, `LIMIT`, aliases, etc.

- **Filtering & Aggregations**  

  `GROUP BY`, `HAVING`, `COUNT`, `SUM`, `AVG`, `MIN`, `MAX`

- **Joins & Relationships**  

  `INNER JOIN`, `LEFT JOIN`, `RIGHT JOIN`, `FULL OUTER JOIN`

- **Subqueries & Nested Queries**

- **Window Functions**  

  `RANK()`, `ROW_NUMBER()`, `DENSE_RANK()`, `LEAD()`, `LAG()`, etc.

- **Advanced SQL Functions**  

  `CASE`, `COALESCE`, `NULLIF`, `CAST`, `CONVERT`, string/date/time functions