Software⏱️ 2 min read📅 2026-05-31

How to Fix ORA-00054 Error – ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

ORA-00054 error occurs when a database operation is blocked due to another process holding the resource busy.

Quick Answer: Check if any long-running processes are blocking the update, and consider increasing the session timeout or using NOWAIT=FALSE to wait for the resource.

ORA-00054 is an error that occurs when a database operation, such as an update, fails due to a resource being busy. This can happen for several reasons, including locking issues, deadlocks, or insufficient privileges.

⚠️ Common Causes

  • Insufficient privileges: The user attempting the update may not have the necessary permissions to access or modify the resource.
  • Locking issues: Other processes may be holding onto locks on the resources being updated, preventing the update from proceeding.
  • Deadlocks: Two or more processes are blocked, each waiting for the other to release a lock, causing the update to fail.

🔧 Proven Troubleshooting Steps

Method 1: Check for Locks

  1. Step 1: Use the DBMS LOCKS package to identify any locks held by other processes.

Method 2: Increase Privileges

  1. Step 1: Grant the necessary privileges to the user attempting the update.

Method 3: Resolve Deadlocks

  1. Step 1: Use the V$SESSION and V$LOCKED_OBJECT views to identify the processes causing the deadlock.

💡 Conclusion

By following these steps, you can resolve ORA-00054 errors and ensure that your database operations complete successfully.

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