Capture attention events for canceled requests, read event-file XML, compare Query Store aborts, and inspect transaction cleanup.
Query Percentage Complete: Watch a Long Query Finish
Query percentage complete is not a column in any view, but sys.dm_exec_query_profiles reports how many rows each operator has produced against the plan’s estimate. This post builds a monitor query for a running statement, explains why a percentage can pass 100 or even run into the thousands, and shows which operators to trust.
How to Combine Time and Date in SQL SERVER? – Interview Question of the Week #285
Question: How to Combine Time and Date in SQL SERVER?
Answer: A very simple and popular question. Let us learn together.
Compute Scalar Operators: Why a Computed Column Shows Two
A plan that reads a computed column shows two Compute Scalar operators, and the second one looks like a mistake. This post compares three tables in the plan text: an expression in the query, a computed column and a persisted computed column. It shows what each of the Compute Scalar operators defines and whether the extra operator costs anything.
SQL Puzzle – Solution to Strange Results – IN and IS NOT NULL –
Earlier I had published a blog post about a puzzle SQL Puzzle – IN and IS NOT NULL – Strange Results. Today we will see a solution to strange results puzzle.
Logging Free Space per Volume Into a Table Each Day
Log free space per volume from SQL Server volume metadata, keep one daily sample per mount point, and compare change with LAG.
Open Source Cloud: Final Post
Open source cloud, the final post: the whole ten part beginner series on one page, with key lessons and a simple guide on where to start.