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Phase 4 · SQL & Data Engineering Basics

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Working with Databases in Python

Part of the AI Engineer Roadmap.

Summary

Connecting to and querying databases from Python (sqlite3, SQLAlchemy, psycopg2) — how data pipelines pull training data programmatically.

How to Learn This

1Connect to a local SQLite or Postgres database from a Python script.
2Practice loading a SQL query result directly into a pandas DataFrame.
3Learn parameterized queries to avoid SQL injection when building data tools.

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SQL Basics (SELECT, JOIN, GROUP BY)

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Data Pipelines (Concept)

More topics in SQL & Data Engineering Basics

SQL Basics (SELECT, JOIN, GROUP BY)Data Pipelines (Concept)ETL vs ELT Batch vs Streaming Data Data Warehouses (Concept)Airflow Basics (Overview)Working with APIs for Data Collection Web Scraping (BeautifulSoup)

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