Login failed for user ‘xxx’. Reason: Server is in single user mode. Only one administrator can connect at this time.

Issue – Login failed for user ‘xxx’. Reason: Server is in single user mode. Only one administrator can connect at this time. Cause – Ensure SQL Server is not running in Single user mode by checking start-up parameter. if you see -m; it mean your SQL is running with single user mode. -m : Starts an… Read More Login failed for user ‘xxx’. Reason: Server is in single user mode. Only one administrator can connect at this time.

Server TCP provider failed to listen on [ ‘any’ 1433]. Tcp port is already in use.

Issue – Today I faced very weird issue; on multi instance SQL Server machine, couple of SQL Services was not starting after Server reboot ( In my case it was SQL 2014 and SQL 2016 ) and every time I was trying to restart my SQL Services, I was getting below error message –  … Read More Server TCP provider failed to listen on [ ‘any’ 1433]. Tcp port is already in use.

The server principal “XYZ\USER” is not able to access the database “YourDBName” under the current security context

My Development team contacted me and said they are not able to access database  “The server principal “XYZ\USER” is not able to access the database “YourDBName” under the current security context” when I looked into server server I found – Login was there and access was granted. When I looked into database I found user… Read More The server principal “XYZ\USER” is not able to access the database “YourDBName” under the current security context

How to bypass restart computer error message while installing SQL Patch

If you ever encounter restart computer error message while performing SQL Server patching and you don’t have opportunity\permission to restart your machine. You can bypass this situation by deleting value from PendingFileRenameOperations key. Here are the steps which you need to follow –> To Open Registry Editor. Click Start  ( win + R ) –> Run,… Read More How to bypass restart computer error message while installing SQL Patch

Create Blocking Alert – SQL 2005 , SQL 2008 R2 and SQL 2012

We often need to create blocking alert in our Production server to capture existing blocking on server and keep record for future analysis. Here are steps which help us to create blocking alerts- Either you can receive blocking details through e-mail or you can log event id in application log and configure your monitoring tool to… Read More Create Blocking Alert – SQL 2005 , SQL 2008 R2 and SQL 2012