How to Fix SQLite Error Code 5? Database is Locked: Fixed

Written By Rohan Wiese
Updated on July 11th, 2025

4.9 based on 1809 user reviews

Summary: SQLite is a small database; it is small, fast, and efficient, and it does not require a server to run the queries. For compact use, it provides various database resources to proceed with your query and operation. Issues arise when you want to perform various operations and processes simultaneously. This situation creates a starvation and deadlock situation and triggers the error code 5. To prevent and fix SQLite Error Code 5, we described the various methods, including a manual method and a professional SQLite Database Recovery Tool. The tool has an easy-to-use interface and is equipped with an advanced algorithm.

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Table of Contents

What Causes the “SQLite3 Error Database is Locked”?

The “database is locked” error in SQLite happens when multiple operations attempt to access the same database at the same time. Here are also other reasons mentioned for better understanding.

If one operation is using a database resource while another attempts to access it simultaneously, a conflict can occur.
If the current operation does not complete the task, the database remains locked.
Read or write operations take too long to perform, blocking the other operations.
SQLite opens multiple connections without closing them.

What is the SQLite Database is locked Error?

The SQLite database locked error indicates that your operation does not have access to the database resource at that moment due to another operation taking the resource.

Error Message:

SQLiteException: database is locked

Manual Method to Fix SQLite Error Code 5

The SQLite error code 5 corresponds to a locked situation of the database. This happened if your database was locked due to another operation or process. Below, we mentioned some troubleshooting methods to rectify this error with ease.

Close All Open Connections and Transactions

SQLite keeps a database file locked during the operation and process to prevent data loss. To fix this SQLite error, make sure all your operations and processes remain closed.

Make sure all your connections, operations, and processes of the database remain closed after use.
Always commit and rollback every transaction.

Avoid Simultaneous Write Access

SQLite supports multiple readers and only one writer. If multiple operations try to write to the same database file, it causes an error, and one will be locked out.

Make sure only one thread writes at a time by using a mutex, lock, and thread synchronization.
Set up SQLite to support thread-safe access by using this command:

PRAGMA journal_mode = WAL;

Check for Long-Running Queries

Some of the queries and operations take a significant amount of time to execute and lock the resource for an extended period of time. To solve the issue and error code, follow the steps to check the operation that takes a long time.

Check and optimize the queries by using the indexes and query planning.
Break large batches into small batches to provide efficient and fast output.
Execute the queries as per priority to avoid any chance of deadlock.
Execute the queries in mutual exclusion to easily reduce the waste of resources.
Avoid much user interaction while holding the database locked.

Sophisticated Tool to Fix SQLite Error Code 5

The manual method is complex to perform and has a chance of error. To bypass all the limitations and errors, use an SQLite Recovery Tool. The tool easily repairs your database file and provides a smooth connection to access your database. Moreover, it also supports all versions of the SQLite database and restores the table, column, and index of the query table. Its user-friendly design and simple interface make it easy to use, simplifying tasks for all types of users.

Steps to Fix SQLite Error Code 5

Download and install the SQLite Database Recovery Tool on your system.
Next, click the Open icon to locate and select the database file.
Locate and select the corrupted database files, then choose the correct file system type.
Preview the mailbox content and select the specific data you want to recover.
Finally, click the Save button to export the selected data as a decrypted file.

Conclusion

We elaborated on all the possible tested methods that fix SQLite error code 5. For a seamless and smooth output of results, always use a professional SQLite database recovery tool. The tool is designed to repair and restore data from a corrupted SQLite database file efficiently and securely. Moreover, there is also a manual method; it contains several limitations and complexities. Choose any of the above-mentioned methods as per need, requirement, skill, testcase, and scenario.

Frequently Asked Questions:

Q: How do I unlock an SQLite database?

Ans: If you encounter the SQLite locked error, there are several methods available to unlock it and prevent the issue. Follow all the steps mentioned above and use a professional method to resolve the issue and accomplish your desired task.

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About The Author:

Rohan Wiese

Rohan Wiese is a content and website optimization expert who helps blogs and businesses grow organically. He specializes in enhancing content quality, improving site structure, and increasing online visibility through smart, practical, and easy-to-implement strategies that drive long-term results.