A DBCC CLONEDATABASE error that names sys.sysowners points at a database user name, not at the database owner. The queries here find the conflicting user in model and in the source database, and I tested them on SQL Server 2025 along with a clean clone.
SQL SERVER – DBCC CLONEDATABASE Error: Cannot Insert Duplicate Key Row In Object ‘sys.sysschobjs’ With Unique Index ‘clst’.
Investigate a DBCC CLONEDATABASE sys.sysschobjs error with supported catalog checks, original screenshots and a distinct build-specific fix.
CHECKPOINT vs DBCC DROPCLEANBUFFERS: Impact on Memory
CHECKPOINT vs DBCC DROPCLEANBUFFERS comes down to which pages leave memory. CHECKPOINT writes dirty pages to disk, and DBCC DROPCLEANBUFFERS removes clean pages from the buffer pool. Here is the effect on memory, with results.
What is Clean Buffer in DBCC DROPCLEANBUFFERS? – Interview Question of the Week #215
What is a clean buffer in DBCC DROPCLEANBUFFERS? No one had asked me this in 20 years, so here is the answer in the simplest words I could find.
PREEMPTIVE_OS_DEVICEIOCONTROL: DBCC CHECKDB Will Not Stop
A DBCC CHECKDB session waiting on PREEMPTIVE_OS_DEVICEIOCONTROL did not end, even after a stop job and a kill. The wait is outside SQL Server’s control, so nothing inside SQL Server could clear it. Restarting SQL Server removed the session.
DBCC PAGE Alternative: Read Page Headers with T-SQL
The best DBCC PAGE alternative is the function sys.dm_db_page_info. This post builds a demo table, lists all of its pages with the allocation view, and compares one page with DBCC PAGE. It also explains the two modes and the page wait use.
Estimated Completion Time for Backup, Restore and DBCC
The estimated completion time of a backup, restore or DBCC command is one query away. This post builds a monitor query on sys.dm_exec_requests and watches a backup, a restore and a DBCC check in a second window. It also covers STATS and the DBCC step name.