Group cached statements by query_hash to find high total CPU and reads, compare plan hashes, and account for missing cache history.
How to Find How Many Rows Each Query Returned Along with Execution Plan? – Interview Question of the Week #115
Want to see How Many Rows Each Query Returned along with its execution plan? Here is a query for it, and why reads and worker time matter more.
SQL SERVER – SQL Server: Getting OS information using DMV
Need the Windows version SQL Server runs on? Get OS information with the sys.dm_os_windows_info DMV, or read it from the ERRORLOG at startup.
SQL SERVER – Script to Find and Monitoring TempDB Space Usage
A client’s TempDB log grew to 80 GB while the data file was 5 GB. Here is the script I used for monitoring TempDB Space usage and finding the cause.
Find All Queries with Implicit Conversion in SQL Server – Interview Question of the Week #107
Question: How do I find out how many queries have an Implicit Conversion in SQL Server? The source of this question is very interesting.
SQL SERVER – Using dm_db_stats_properties With InMemory OLTP Tables
Does sys.dm_db_stats_properties show modified rows for InMemory OLTP tables? I tested it, and memory-optimized tables are now covered. Here is what I found.
How to Find Number of Times Function Called in SQL Server? – Interview Question of the Week #104
A function was causing CPU spikes. How many times was that function called, and at what cost? The SQL Server 2016 DMV dm_exec_function_stats shows it.