D-Day, Family, Vets, and Life
Today is the 70th anniversary of D-Day, a day worth remembering and celebrating to be sure. I like that we...
2014-06-06
379 reads
Andy Warren
A Sherlockian Question Of the Day & Why I’m Writing Questions
If you haven’t noticed by now I’ve been writing quite a few questions of the day for SQLServerCentral. It started,...
2014-06-04
327 reads
Miscellaneous Notes on the PASS NomCom and General Election
Interesting day yesterday. A spirited discussion on Twitter, a challenging post from candidate Mark Broadbent, and a couple good threads...
2014-06-04
644 reads
Access Granted or Not? Question of the Day
Access Granted or Not? is my latest Question Of The Day and I think it represents a pretty good troubleshooting...
2014-06-03
468 reads
I Voted For the 2014 PASS NomCom
I was interested to see that the online voting system has changed this year to one powered by Simply Voting....
2014-06-03
405 reads
Recent Reading: The Food Network, And The White House!
I haven’t posted much on books lately, here are two that are different:
Inside the Food Network. Definitely some gossip, but...
2014-06-03
350 reads
2014-06-03
1,965 reads
I’m A Candidate For the PASS 2014 Nominating Committee
I submitted my application for the NomCom on May 21 and after the review process we’re now in “campaign week”....
2014-06-02
646 reads
Building The SQLSaturday Orlando Marketing Plan-Part 16
As you can see my third attempt on Fiverr didn’t work out great. I asked for something bold/high contrast and...
2014-05-31
1,062 reads
Building The SQLSaturday Orlando Marketing Plan-Part 15
After doing some local exploring of the idea of delivering certificates of completion I don’t think it’s enough of a...
2014-05-30
1,243 reads
Blogs
AI Innovation in Microsoft Keynote
By Chris Yates
I’m thrilled to be covering the Microsoft Keynote: Fuel AI Innovation with Azure Databases on Day...
Benefits of Migrating from Azure Synapse Analytics to Microsoft Fabric
By James Serra
Many customers ask me about the advantages of moving from Azure Synapse Analytics to...
PASS Summit 2024 – A Very Different World
By Brian Kelley
The last data centric conference I attended was the PASS Summit in 2019. A...
Forums
What's New for the Microsoft Data Platform
Comments posted to this topic are about the item What's New for the Microsoft...
Using Outer Joins
Comments posted to this topic are about the item Using Outer Joins
Question of the Day
Using Outer Joins
I have this data in a SQL Server 2019 database:
Customer table CustomerID CustomerName 1 Steve 2 Andy 3 Brian 4 Allen 5 Devin 6 Sally OrderHeader table OrderID CustomerID OrderDate 1 1 2024-02-01 2 1 2024-03-01 3 3 2024-04-01 4 4 2024-05-01 6 4 2024-05-01 7 3 2024-06-07 8 2 2024-04-07I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned?
SELECT c.CustomerName, COUNT(oh.OrderID) FROM dbo.Customer AS c LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID WHERE oh.Orderdate > '2024/04/01' GROUP BY c.CustomerNameSee possible answers