Finding the relationship of a filegroup and a partition
The other day, I was trying to find out which partition is on which filegroup for a a partitioned table....
2007-12-12
1,591 reads
Jeffrey Yao
Another use of OpenRowSet()
From time to time, I need to dump out the result from a SP, such as sp_lock or sp_who.
Traditionally,...
2007-11-29
1,412 reads
Distributed Transaction Issue Msg 7391
I solved an "interesting" issue today. It is about distributed transaction. When I set up transactional replication with immediate updating...
2007-11-21
3,673 reads
Generate RPC:Completed Event
I was doing a research on SQL trace regarding RPC:Completed event. So I need to generate a RPC:Completed event first...
2007-11-14
1,734 reads
save disk when doing backup
As a DBA, most of us will also take care of test environment. However test servers usually cannot afford to...
2007-11-11
387 reads
Survive A SQL Server DBA Technical Interview
Another little bit of career advice, this time from longtime author Jeffrey Yao who gives you some pointeres on what you should know for your next job interview.
2007-10-12 (first published: 2006-07-10)
36,158 reads
How to be a Good DBA - Strategy and Tactics
New Author! And long time reader - Jeffrey was site member #712, almost 3 years and 130,000 members ago! This article describes the skills needed to progress from junior to intermediate to senior DBA.
2007-10-02 (first published: 2004-03-03)
39,049 reads
Let database work for your daily life
I know there are many off-shelf stuff, like MS Money, that can help you organize your personal financial things, but...
2005-09-11
1,341 reads
about xp_sendmail
I got a very interesting issue, I may guess the reason but not sure why it is this way.
Symptom: Logon to...
2005-09-09
1,380 reads
one issue about SQL 2000 BOL
This is my first post, congrats to myself. 🙂
DTS Connection object does not list "UseTrustedConnection" property
I am working on a...
2005-09-08
1,351 reads
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers