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Setting Up a SQL Environment

Before writing SQL queries, you need a working SQL environment. Common choices include:

  • MySQL: Popular open-source SQL database.
  • PostgreSQL: Advanced open-source SQL database.
  • SQLite: Lightweight, file-based SQL engine — great for beginners.
  • Online Tools: Use platforms like DB Fiddle, SQLFiddle, or SQLite Online.

To install SQLite:

# For Linux/macOS
sudo apt install sqlite3

# For Windows
Download SQLite from the official website and add to PATH

You can then use sqlite3 in the terminal to interact with a database.

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