Troubleshooting Guide: Error 5059 – Database in Transition
Why This Error Happens
This error occurs when SQL Server receives an ALTER DATABASE command while the target database is already in the middle of a state transition, such as completing a previous ALTER DATABASE operation, finishing a database mirroring failover, or processing an AUTO_CLOSE event. SQL Server locks the database configuration briefly during these transitions to maintain metadata consistency, rejecting any concurrent modification requests. This is frequently triggered by automated deployment scripts or monitoring tools that issue rapid, overlapping ALTER DATABASE statements without waiting for the prior command to fully commit.
Step-by-Step Resolution Guide
Step 1: Identify Concurrent or Overlapping Processes
- Open SQL Server Management Studio (SSMS) and run
sp_who2or querysys.dm_exec_requeststo check for other sessions executingALTER DATABASEagainst the same database. - Check Windows Server 2025 Task Scheduler and any CI/CD pipelines (e.g., Azure DevOps agents) for scripts that might be firing simultaneous schema or state change commands.
- Look at the SQL Server Error Log (via SSMS > Management > SQL Server Logs) for the exact timestamp of the 5059 error to correlate with other transactional activity.
Step 2: Wait for the Current Transition to Complete
- Run the following query to check the current state of the database transition:
SELECT name, state_desc, user_access_desc
FROM sys.databases
WHERE name = 'YourDatabaseName';
- If
state_descshows anything other thanONLINE(e.g.,RESTORINGorONLINE_IN_PROGRESS), pause your script execution for 10-15 seconds before retrying. - For mirroring or Always On Availability Group setups, verify failover completion status using
sys.dm_hadr_database_replica_states.
Step 3: Implement a Retry Logic with Delay
- Modify your deployment or automation scripts to include a
WAITFOR DELAYor aTRY...CATCHblock with a retry counter to handle transient locking. - Example T-SQL pattern:
BEGIN TRY
ALTER DATABASE [YourDatabaseName] SET MULTI_USER;
END TRY
BEGIN CATCH
WAITFOR DELAY '00:00:05';
ALTER DATABASE [YourDatabaseName] SET MULTI_USER;
END CATCH
- Ensure no other active connections are forcing a
SINGLE_USERrollback simultaneously by checkingsys.dm_exec_sessions.
Step 4: Restart the SQL Server Service (If Stuck)
- If the transition state appears “stuck” (lasting longer than 5 minutes), open Services.msc on Windows Server 2025.
- Locate SQL Server (MSSQLSERVER) or the specific named instance, right-click, and select Restart.
- Note: This will terminate all active connections, so ensure this is done during a maintenance window.
Alternative or Verification Steps
- Verify the Fix: Re-run the
ALTER DATABASEstatement and immediately checksys.databasesto confirmstate_descreturns toONLINEwithout further Error 5059 occurrences. - Alternative Approach: If the issue persists after a restart, use
DBCC CHECKDBto rule out underlying corruption that might be preventing the database from exiting the “pending” state.