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.

Microsoft Contoso BI Demo Dataset for Retail Industry

Today, I was working on demo where I wanted to have test dataset for Retail db and after some googing I found MS has it’s own database and here are details – The Contoso BI Demo dataset is used to demonstrate DW/BI functionalities across the entire Microsoft Office product family. This dataset includes C-level, sales/marketing,… Read More Microsoft Contoso BI Demo Dataset for Retail Industry

Performance Dash board and performance Baseline

These two articles were published my Microsoft SQL team and it will help you to create Performance dashboard and performance baseline report. These reports are really cool and will eliminate your performance monitoring need. https://blogs.msdn.microsoft.com/sql_server_team/sql-server-performance-dashboard-reports-unleashed-for-enterprise-monitoring/  https://blogs.msdn.microsoft.com/sql_server_team/sql-server-performance-baselining-reports-unleashed-for-enterprise-monitoring/#comment-2705

Could not locate file ‘xy_abc_Log’ for database ‘abc’ in sys.database_files.

Problem – I have found VLF size of my database abc is very huge and when i have tried to shrink the file i have received below error – Could not locate file ‘xy_abc_Log’ for database ‘abc’ in sys.database_files. Resolution – While my investigation I have found logical fine name under sys.master_files is different as compare… Read More Could not locate file ‘xy_abc_Log’ for database ‘abc’ in sys.database_files.