You already know what UNION and UNION ALL operators do. They combine datasets while UNION keeps the distinct data, UNION ALL will retain all the data. You can read more about that over here: SQL SERVER – Difference Between Union vs. Union All – Optimal Performance Comparison. Let us see why does anyone all work, but union produces error in this puzzle.
SQL SERVER – Slow Filestream Data Cleanup. What Should We Do?
One of my client reported an issue where they were running low on free disk space on the drive where they have file-stream files. They are one of a heavy user of filestream feature as compare to any of my previous clients. As per their observation, the filestream disk space was getting released very slow after deleting the records in database tables using this feature.
SQL SERVER – SQL Vulnerability Assessment – Security Analysis
Microsoft has recently announced a very interesting feature for security of your SQL Server. I really loved this new feature – SQL Vulnerability Assessment. Unlike most of the other V1 features which MS releases, this time I really liked this particular feature. This feature not only provides the assessments but also the solutions.
How to List Queries With Memory Grant and Execution Plan? – Interview Question of the Week #154
Question: How to List Queries With Memory Grant and Execution Plan?
SQL SERVER – Account Added Automatically in SQL Server Used by SharePoint
Earlier I wrote a blog about DBA doing detective work. SQL SERVER – Why We have an Audit, Trace in DATA Folder? What are These Files?. Now today there is another similar situation where the account is added automatically in SQL Server used by SharePoint.





