As most of you might know that my expert area in SQL Server in performance tuning. But, I also deal with almost every issue related to SQL Server engine. Many times, it so happens then clients call me for performance tuning and while fixing, we see some other problem. In this blog, we would learn about Parallel Redo on AlwaysOn Secondary causing new waits which were introduced in SQL Server 2016.
SQL SERVER – Unable to Bring SQL Cluster Online – Reason: The Account is Disabled
This was one of an interesting issue reported by my client. They informed that after some hardening by the security team, they are not able to bring SQL resource online in the cluster. In this blog, we would learn about how to fix the issue where SQL cluster is not coming online.
How to Generate Fibonacci Series for the First 1000 Values? – Interview Question of the Week #174
Question:Â How to Generate Fibonacci Series for the First 1000 Values?
SQL SERVER – Impact of Transaction on the Free Log Space
Earlier I wrote a blog post about SQL SERVER – How to Find Free Log Space in SQL Server? After reading this blog post, I received the following question from one of the users about the impact of the transaction on the free log space.
SQL SERVER – Reading Transaction Log to Identified Who Dropped a Table
The other day I received a distress email from a user who wanted to find out who has dropped a table or column from their database. During the On Demand (55 minutes) consultation, not only I was able to help them with restoring their lost data but also was able to find out which user had actually dropped their table “accidentally”. We were lucky enough that the user had a database in full recovery model, hence their transaction log recorded every detail needed.
SQL SERVER – Simple Script to Create a Login and User for a Specific Database with System Admin Rights
A very popular question I often receive about SQL Server security is what is the difference between SQL Server Login and SQL Server User. I really love this question as I bet only 5% of SQL Server professionals I met know the answer to this question. In this blog post, we are going to see a Simple Script to Create a Login and User for a Specific Database with System Admin Rights.









