https://github.com/KwonNayeon/sql-focused-ds-prep
SQL-focused solutions and notes for data science technical interviews
https://github.com/KwonNayeon/sql-focused-ds-prep
data-science interview-prep postgresql sql sqlite
Last synced: 9 months ago
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SQL-focused solutions and notes for data science technical interviews
- Host: GitHub
- URL: https://github.com/KwonNayeon/sql-focused-ds-prep
- Owner: KwonNayeon
- Created: 2023-03-27T13:50:02.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2025-01-02T08:33:47.000Z (over 1 year ago)
- Last Synced: 2025-01-02T09:36:54.582Z (over 1 year ago)
- Topics: data-science, interview-prep, postgresql, sql, sqlite
- Language: Python
- Homepage:
- Size: 150 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# SQL Practice Repository
Personal repository for SQL problem solving practice and technical interview preparation, primarily focused on data science SQL challenges
## About
This repository contains my solutions and notes for various SQL challenges and interview preparation materials. While SQL is the primary focus, it also includes other technical interview topics for data science positions.
## Current Challenge
**Technical Interview Preparation**
- Primary Focus: SQL problems from DataLemur (PostgreSQL 14), LeetCode SQL 50
- Additional Areas: Algorithm, Pandas, Statistics, and Machine Learning concepts
- Based on: "Ace the Data Science Interview"
**Completed**
- Advent of SQL 2024: All 25 days solved!
- Link: [Advent of SQL 2024](https://solvesql.com/collections/advent-of-sql-2024/)
## Structure
```plaintext
├── README.md
├── advent_2024/ # SQL solutions (Completed!)
│ ├── day01.sql
│ ├── ... # day02 ~ day24
│ └── day25.sql
├── interview_prep/ # See interview_prep/README.md for details
│ ├── sql/ # PostgreSQL solutions
│ ├── algorithm/ # Algorithm and data structure problems
│ ├── pandas/ # Data preprocessing and manipulation
│ ├── statistics/ # Statistical concepts and problem-solving
│ └── ml/ # Machine learning techniques and applied concepts
└── study/ # Personal SQL study notes
├── oracle_class01.sql
└── oracle_class02.sql
```
## Resources
- [DataLemur SQL Questions](https://datalemur.com/questions)
- [PostgreSQL 14 Documentation](https://www.postgresql.org/docs/14/index.html)
- [Ace the Data Science Interview](https://www.acethedatascienceinterview.com)
- [Pandas Exercises](https://github.com/guipsamora/pandas_exercises)
- [SQLite Documentation](https://sqlite.org/docs.html)