What is an Identity?
Identity (or AutoNumber) is a column that automatically generates numeric values. A start and increment value can be set, but...
2016-01-26
120 reads
Identity (or AutoNumber) is a column that automatically generates numeric values. A start and increment value can be set, but...
2016-01-26
120 reads
In relational database design, the process of organizing data to minimize redundancy is called normalization. It usually involves dividing a...
2016-01-26
192 reads
An execution plan is basically a road map that graphically or textually shows the data retrieval methods chosen by the...
2015-12-28
831 reads
This question has two crinkle answers –· When the table is already created.
· When the table is to be created run...
2015-11-13
133 reads
How we can convert Comma Separated Value to Rows and Vice Versa?
Basic fundamental
While we are working on reporting some circumstances...
2015-10-08
440 reads
Some time we need to know that who is using database as of now or who all are connected to...
2015-10-07
525 reads
Table values parameters
How we can pass multiple rows in stored procedure or function as a parameter?
Table-valued parameters are a new...
2015-10-06
1,933 reads
Utility link for excel import to SQL
Save Excel Data into Databases
http://www.savetodb.com/Connect to databases, edit data, and save changes back. Edit data...
2015-09-30
432 reads
How can you achieve good enough without compromising the process/product? In the world of...
By Patrick
One of my customers recently wanted to rename each of the SQL audit files...
The post The pros and cons of self-service BI: What every industry leader should...
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