In the email yesterday from the client who earlier hired me for performance tuning had a small question about how to shrink tempdb database.
SQL SERVER – DBCC CHECKDB WITH PHYSICAL_ONLY Failing and DBCC CHECKDB Succeeding – Bug
One of my previous clients recently reached out with a strange bug where DBCC CHECKDB WITH PHYSICAL_ONLY failed and DBCC CHECKDB Succeeded.
SQL SERVER – DBCC CLONEDATABASE Error – Msg 2601: Cannot Insert Duplicate Key Row in Object ‘sys.sysowners’ With Unique Index ‘nc1’.
A few days ago, I wrote a blog about an error while creating a clone of a database using DBCC CLONEDATABASE command. Here is the link to read that blog.
SQL SERVER – DBCC CLONEDATABASE Error: Cannot Insert Duplicate Key Row In Object ‘sys.sysschobjs’ With Unique Index ‘clst’.
Learn how to fix: Cannot insert a duplicate key row in object ‘sys.sysschobjs’ with unique index ‘clst’ while using DBCC CLONEDATABASE.
SQL SERVER – Detecting Database Isolation Level MEMORY_OPTIMIZED_ ELEVATE_TO_SNAPSHOT
Customer reached out me with a very simple but very interesting question related to Detecting Database Isolation Level MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT.
What is Clean Buffer in DBCC DROPCLEANBUFFERS? – Interview Question of the Week #215
Question: What is Clean Buffer in DBCC DROPCLEANBUFFERS?
SQL SERVER – DBCC CHECKDB Waiting for PREEMPTIVE_OS_DEVICEIOCONTROL
As you might already know that I am a SQL Server Performance Tuning Expert who also acts as a “on-demand consultant” for many organizations across the world who have performance tuning or any other issue related to SQL Server. Once I was working with one of my clients and their DBA asked a question. In this blog, we would learn about possible ways to handle a situation where DBCC CHECKDB is indefinitely waiting for PREEMPTIVE_OS_DEVICEIOCONTROL.