Software⏱️ 2 min read📅 2026-06-03

How to Fix: SQLite error 'attempt to write a readonly database' during insert?

SQLite error 'attempt to write a readonly database' during insert?

Quick Answer: Check if the database file is being opened in read-only mode, or if there's another process holding the file open. Try running your script with elevated privileges or using a different database file.

The SQLite error 'attempt to write a readonly database' occurs when you try to perform an INSERT operation on a database that is set as read-only. This can happen due to various reasons such as incorrect permissions, database configuration, or even a misconfigured SQLite file.

🛑 Root Causes of the Error

  • Incorrect database permissions
  • Databases set as read-only
  • Misconfigured SQLite file

✅ Best Solutions to Fix It

Method 1: Checking Database Permissions

  1. Step 1: Check the database permissions using the `ls -l` command to ensure that the owner has read and write access.
  2. Step 2: If the permissions are incorrect, modify them using the `chmod` command. For example, `chmod 644 yourdatabase.db` sets the permissions to readable and writable by the owner and group.

Method 2: Setting Database as Read-Write

  1. Step 1: Locate the SQLite database file in your website's directory.
  2. Step 2: Use the `sqlite3` command to open the database and execute the following SQL query: `.mode csv` and then `.import /dev/null`, followed by `.exit`. This will reset the database and set it as read-write.

✨ Wrapping Up

To avoid this error in the future, ensure that your SQLite database is properly configured and has the correct permissions. Regularly check and update your database permissions to prevent this issue from occurring.

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