A DMV a Day – Day 3
The DMV for Day 3 is sys.dm_os_sys_info, which is described by BOL as:
Returns a miscellaneous set of useful information about...
2010-04-03
1,069 reads
Blog Posts
A T-SQL Holiday Message
Totally pointless, but fun. Run it to decode the message.
DECLARE @Message varchar(20)
SET @Message = '????????????'
DECLARE @Decode Table(
DSeq tinyint,
DKey smallint
)
INSERT INTO...
2010-04-03
721 reads
Service Broker Solutions - Don't Forget the Basics
After finally getting a Service Broker solution implemented successfully, I'm really impressed with the technology, and frustrated how difficult it...
2010-04-03
900 reads
A DMV a Day – Day 2
The DMV for Day 2 is sys.dm_exec_sessions, which is described by BOL as:
Returns one row per authenticated session on SQL...
2010-04-02
414 reads
Book Review: Where Have All The Leaders Gone
It had been a long while since I listened to an audio book, found it while browsing at the library....
2010-04-02
376 reads
Goals for 2010 – Q1 Review
Here were the goals I posted for 2010 on the last day of December:
Continue managing the forums, but at a...
2010-04-02
498 reads
Speaking Seven Times in April
April will be a busy month for me as I will be speaking seven different times, on seven different topics,...
2010-04-02
446 reads
The Best vs. The Good Enough
When you ask a question on the forums, you'll often get responses that certain ways of doing things are inefficient...
2010-04-02
447 reads
The Way - The Reason
This is one thing outside the SQL World, but it has very strong place in every aspects, it is one...
2010-04-02
615 reads
The Web 3.0 has finally arrived… It’s The Cloud
The 2008 trending topic everyone was talking about was the Web 2.0. On October 23 that same year,...
2010-04-02
17 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