One of the challenges for many database developers is coming up with a good design that not only meets the specifications but also performs well in queries. Relational databases often seek some level of normalization, which reduces the update load for a system but might require more effort work from developers to write queries. Many […]
2023-09-22
2,078 reads
A fun contest from Steve asks you to design a system that tracks travels for a fictitious business.
2023-08-11
1,679 reads
By Vinay Thakur
As this is an Artificial Intelligence (AI) World, things are changing. We can see that...
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By Steve Jones
nachlophobia – n. the fear that your deepest connections with people are ultimately pretty...
Hello I need help identifying all records that have consecutive hours (time in order)...
hi, I have a table called Rules Create table Rules ( Id int ,...
I am currently upgrading a very old database running SQL Server 2008 to SQL...
What is returned from this query?
SELECT
( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2011' AND soh.OrderDate < '01/01/2012') AS OrdersIn2011
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2012' AND soh.OrderDate < '01/01/2013') AS OrdersIn2012
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2013' AND soh.OrderDate < '01/01/2014') AS OrdersIn2013; See possible answers