The Mysterious Case of the Missing Default Value
Sometimes things are not exactly how we think they are. Read the story of the missing default value and learn why.
2017-03-24 (first published: 2015-12-01)
6,738 reads
Sometimes things are not exactly how we think they are. Read the story of the missing default value and learn why.
2017-03-24 (first published: 2015-12-01)
6,738 reads
Database ownership is an old topic for SQL Server pro's. Check this simple lab to learn the risks your databases can be exposed to.
2015-01-29
10,572 reads
2013-11-15
1,996 reads
2013-09-23
2,328 reads
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Comments posted to this topic are about the item What's New for the Microsoft...
Comments posted to this topic are about the item 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