Recently I came across an issue where I was not able to fix directly. My client reported below error in Skype, which is related to a service pack.
SQL SERVER – FIX: The SQL Server Failed to Initialize VIA Support Library [QLVipl.dll]
My every interaction with client teaches me something new. Recently someone contacted me through email and informed that they have issues with SQL Server Startup. When we checked ERRORLOG, we found below messages at the end of the ERRORLOG where Via Support library was mentioned.
SQL SERVER – Msg 3035, Level 16 – Cannot Perform a Differential Backup for Database “SQLAuthority”, Because a Current Database Backup Does not Exist
If we look at the error in the subject line, it is very clear that a full backup is needed so that the differential backup chain can be initiated. If this happens to a newly created database, then it makes sense and there is no need for me to write a blog. There was an interesting finding about the cause of this error, other than obvious one, so sharing it. Let us see another error related to differential backup.
SQL SERVER – Login Failed. The Login is From an Untrusted Domain and Cannot be Used with Windows Authentication
In SQL Server, there are error few messages which can be caused due to multiple reasons. One of the famous example is “Login Failed for User” error message. If you have seen this earlier, you would know that this message can come due to incorrect user name, incorrect password, incorrect database and many more other reasons. Whenever I see login failed, I look at SQL Server ERRORLOG to see the exact cause.
SQL SERVER – OS Error 13 – The Data is Invalid OS Error 87 – The Parameter is Incorrect – Various Errors due to Faulty Media or Hardware
I offered them quick 15-minute time to see what the errors are and whether I have some techniques to recover the data for invalid OS error 87.
SQL SERVER – Unable to Add Server Name SQLAUTH-LISTENER to Transport Device NetBt_If4 Status 2 – Windows Cluster
During one of my consulting engagement about Always On availability group configuration, I found that listener network name was not coming online. As a rule of thumb, I always generate cluster log for any error related to cluster. SQL SERVER – Steps to Generate Windows Cluster Log?
SQL SERVER – Logon Failure: The User has not Been Granted the Requested Logon Type at This Computer
Sometimes DBA do something which they are not aware of and end up in looking at the logs to see what went wrong. Here is one of the articles I wrote about the changing service account from configuration manager. Why to Use SQL Server Configuration Manager Over Services applet (services.msc)? – Interview Question of the Week #112. In this blog post, let us learn how to fix logon failure error.