Learning one new thing every day keeps me passionate about my job. Recently, I had a very interesting experience with one of my customer while working with them on Comprehensive Database Performance Health Check and found some non-default values in sp_configure. They asked me – Which settings change in sp_configure needs restart to take effect? Do we need to remember the values?
SQL SERVER – Installation Failure – Specified Instance Via Transform is Already Installed. MSINEWINSTANCE Requires a New Instance that is not Installed
This is one of the situations where my client installed one clustered instance of SQL Server and the second one was failing. In this blog, I would share my findings of error: Specified instance via transform is already installed. MSINEWINSTANCE requires a new instance that is not installed.
How to Sort a Varchar Column Storing Integers with Order By? – Interview Question of the Week #206
Question: How to Sort a Varchar Column Storing Integers with Order By?
SQL SERVER – Measuring the Length of VARCHAR and NVARCHAR Columns with COL_LENGTH
I love my job because I get to help people learn new technology as well as help them clear their confusion about the older technology. Recently during SQL Server Performance Tuning Practical Workshop, I was asked a very simple but interesting question by an attendee about NVARCHAR column.
SQL SERVER – How to Count a Particular Value Across All Columns?
This question came up in the recent SQL Server Performance Tuning Practical Workshop. During the workshop, I have answer questions of users during lunch break. One of the users had a very interesting scenario where he had to change one of their employee’s email address for technical reasons but before he changes that he needed to count in every single place where the email exists. I have simulated the same situation in this blog post and we will see how we can count a particular value across all the columns of the table.
SQL SERVER – Cluster Install Failure – Code 0x84cf0003 – Updating Permission Setting for Folder Failed
There are various issues which I have seen SQL installation and most of the time they are intuitive. The error message is mostly helpful and provides the right direction. In this blog we would discuss error Updating permission setting for folder failed:
SQL Server – Find Distinct Result Sets Using EXCEPT Operator
In my earlier post on “SQL SERVER – Remove Duplicate Rows Using UNION Operator”, I showed a different method of removing duplicate rows from the result set using a UNION operator. Here is another similar method using EXCEPT operator to find distinct results.