How to fix Error 2580 on Windows Server 2025 / Windows 11

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Troubleshooting Guide: SQL Server Error 2580 — DBCC CLEANTABLE Restriction

Why This Error Happens

This error occurs because DBCC CLEANTABLE is being executed against a system table, temporary table (prefixed with # or ##), or a table residing in tempdb, none of which support this command. SQL Server 2025 explicitly blocks sparse column cleanup operations on these object types because system catalog integrity and temporary object lifecycles are managed internally by the engine. This is typically caused by a script that dynamically generates table names without filtering out system or temp objects, or by a maintenance job that loops through sys.tables without excluding is_ms_shipped = 1 entries.

Step-by-Step Resolution Guide

Step 1: Identify the Offending Table

  • Run the following query to capture the exact object referenced in the error message:
  SELECT name, object_id, is_ms_shipped, type_desc 
  FROM sys.tables 
  WHERE name = 'YourTableNameHere';
  • Confirm whether is_ms_shipped = 1 (system table) or the name starts with #/## (temporary table).
  • Check the session that generated the error using sys.dm_exec_requests to trace back to the calling script or SQL Agent job.

Step 2: Correct the DBCC CLEANTABLE Script or Job

  • Open the SQL Agent Job or maintenance script (often found in C:\Program Files\Microsoft SQL Server\MSSQL17.MSSQLSERVER\MSSQL\Jobs\) responsible for triggering the command.
  • Add a filtering clause to exclude system and temporary tables:
  SELECT s.name AS SchemaName, t.name AS TableName
  FROM sys.tables t
  JOIN sys.schemas s ON t.schema_id = s.schema_id
  WHERE t.is_ms_shipped = 0
    AND t.name NOT LIKE '#%';
  • Rebuild the dynamic SQL loop (if using a cursor) to only iterate over this filtered result set.

Step 3: Validate Target Database and Schema Context

  • Ensure the script is not accidentally pointing to tempdb instead of the intended user database.
  • Verify the connection string or USE [DatabaseName] statement at the top of the script matches the correct target database.
  • If using SSMS, check the Object Explorer context (bottom-right status bar) to confirm you are connected to the correct database before running ad-hoc DBCC commands.

Step 4: Re-run DBCC CLEANTABLE on the Correct Object

  • Execute the command only against a valid user table containing sparse columns:
  DBCC CLEANTABLE ('YourDatabaseName', 'Schema.YourValidTableName') WITH NO_INFOMSGS;
  • Confirm the table has sparse columns defined; if not, this command is unnecessary for that table.

Alternative or Verification Steps

  • Verify the fix by re-running the corrected maintenance script or job step and confirming Event ID 2580 no longer appears in the Windows Event Viewer (Application Log) or SQL Server Error Log (C:\Program Files\Microsoft SQL Server\MSSQL17.MSSQLSERVER\MSSQL\Log\ERRORLOG).
  • As an alternative, if sparse column space reclamation is still needed broadly, use sp_MSforeachtable with an explicit WHERE filter on is_ms_shipped to safely automate CLEANTABLE across only eligible user tables.