DQS Validation Rules on Composite Domains
In Data Quality Services, composite domains can be created to associate together two or more natural domains within a knowledge...
2012-05-07
666 reads
Blog Posts
Finding the Default Trace File
A post more for me than for anyone else, since I’ll look for something in the default trace and I...
2012-05-07
14,691 reads
Installing SSAS 2012
I don’t usually write posts like this but there have been a few substantial changes to how SSAS 2012 is...
2012-05-07
8,309 reads
Moving from Droid X to Droid Razr Maxx
It’s been not quite two years since I moved from a Blackberry to a Droid X. The X turned out...
2012-05-07
532 reads
My Evolving Goals for Attending Conferences
The first conference I went to back in 1999 I attended every session, the bonus sessions, the breakfasts, everything. It...
2012-05-07
938 reads
Service Broker Sample: Multi-Threading
Introduction
Service Broker is a cool new feature since SQL Server 2005. Yes, SQL 2012 just came out so it’s hardly...
2012-05-07
1,607 reads
Service Broker Sample: Multi-Threading
Introduction
Service Broker is a cool new feature since SQL Server 2005. Yes, SQL 2012 just came out so it’s hardly...
2012-05-07
500 reads
SQLSaturday #158 NYC Event Update! - Spread the word...
It's about three months to to SQLSaturday #158 in NYC, and we're hard at work nailing down all the little...
2012-05-07
1,791 reads
SSAS: Duplicate Attribute Key Error
One type of error that arises occasionally during SSAS cube processing is the ‘duplicate attribute key’ error. The error message...
2012-05-07
1,333 reads
SSIS 2012 Copy or Duplicate Environments
In SSIS 2012 there is a great new feature called environments. They can be thought of as a collection of parameters...
2012-05-07 (first published: 2012-05-02)
3,439 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