This question often keeps on coming in my consulting engagements. Let us quickly see the answer about Query Without Join Showing Query Plan With Join.
SQL SERVER – Persisting Sample Percentage for Statistics – PERSIST_SAMPLE_PERCENT
Recently I got the opportunity to work on a very new feature of Persisting Sample Percentage for Statistics. Let us learn today.
SQL SERVER – List All the Nullable Columns in Database
Recently during the consulting engagement, I needed to create a query that Lists All the Nullable Columns in Database, which I am sharing.
SQL SERVER – APPROX_COUNT_DISTINCT – Not Always Efficient
After a lot of testing, I figured out that the newly introduced function is not always efficient. A newly-introduced function APPROX_COUNT_DISTINCT.
SQL SERVER – Row Mode and Memory Grant Feedback
One of the questions, which really caught my attention did this feature work with Row Mode like it does with Batch Mode. Let us discuss today.
SQL SERVER – Database Scoped Configurations
Recently I was asked a very interesting question by one of my clients on the topic of Database Scoped Configurations. Let us learn today.
Why Query Cost Percentages in a Plan Mislead You
Test why query cost percentages are estimates by comparing two statements with STATISTICS IO, TIME, and query DMV counters.