Becoming overly enthusiastic about a new SQL Server feature can backfire if you don’t do some testing. One example is the table variable introduced with SQL Server 2000. At the time, there was a myth that table variables would always perform better than temp tables with the reasoning that, by definition, variables are stored in […]
2022-02-26
449 reads
Learn how to use Azure File and Blob storage with your applications.
2022-02-23
21,286 reads
2022-02-16
584 reads
Is your SQL database log file too big? Maybe it is. But maybe it’s not. When log files keep growing and appear to be too big some might suggest switching to Simple recovery, shrinking the log file, and switching back to Full recovery. While this will work to shrink the file and free up disk […]
2022-02-16
31,378 reads
In the last week I've been actively trying to join the PostgreSQL community. It's been an interesting experience. I suspect it's going to stay interesting for a while. As part of what I'm doing, I saw this excellent video from Ryan Booz, talking about joining a new community. It got me to thinking. You have […]
2022-02-12
77 reads
You can make SQL Server database development faster and easier with a FREE toolkit!
2022-02-11
5,676 reads
This short piece shows how to add logging for the Delete activity and track which files or folders are deleted.
2022-02-04
1,376 reads
2022-02-04
480 reads
In 2021, many companies had employees leave positions. The number of people resigning from their jobs was so high that the term "The Great Resignation" began appearing in many publications. A number of industries were affected, and there are no shortage of pundits and experts analyzing why. This happened primarily in the US, but the […]
2022-02-04
274 reads
I'm answering a question in the forums and I spot something that crawls up my spine: ;WITH... The person was using a Common Table Expression (CTE) which requires that the preceding statement in the batch have a statement terminator, the semi-colon. However, since the terminator isn't required everywhere, lots of people don't use it at […]
2022-01-29
149 reads
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
I’m excited to announce the release of a new open-source project that fully automates...
Comments posted to this topic are about the item Server-Level Table sizes
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers