Last week, I asked a very simple puzzle about SQL SERVER – Puzzle – Why Does UNION ALL Work but UNION Produces Error?. The puzzle was very simple and interesting both together. I got quite a few valid answers to the puzzle so far. You may check original puzzle post to see all the valid answers. In this blog post we will quickly discuss the answer of our puzzle.
How to List All the Nonclustered Indexes of Your Table? – Interview Question of the Week #155
Question: How to List All the clustered and nonclustered Indexes of Your Table in SQL Server?
SQL SERVER – Log Shipping Monitor Not Getting Updated
One of my clients has implemented log shipping and everything was working fine. Recently they implemented a reporting tool which reported alerts that data missing for few log shipping tables. The data for “last_backup_file” and “last_backup_date” is not getting updated for primary server (log_shipping_monitor_primary) and was showing null. For secondary it was reported correctly.
SQL SERVER – Error: 17142 – SQL Server Service has Been Paused. No New Connections Will be Allowed
Recently I was looking around in my virtual machine to find a topic to blog. Within a few minutes, I was having an idea. In this blog we would talk about an interesting feature “Pause SQL Server”. As stated via official Microsoft documentation “Pausing the Database Engine service prevents new users from connecting to the Database Engine, but users who are already connected can continue to work until their connections are broken. Use pauses when you want to wait for users to complete the work before you stop the service. This enables them to complete transactions that are in progress”. Let us learn about how to fix the issue when the new connections are not allowed.
SQL SERVER – Puzzle – Why Does UNION ALL Work but UNION Produces Error?
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.