A CASE expression is used to display different values depending on a set of conditions. It is a powerful expression and is widely in SQL.
This can be done in two places:
If you have a Case expression in an existing SQL statement, then you can amend this as folows:
AQT will parse the Case clause and display it in the Case dialog for you to amend.
This example is of a simple Case expression, in which the conditions involve a single column. This is often used to translate the values of a column to a more displayable format.
When 'A' Then 'Regular'
When 'L' Then 'Long'
When 'T' Then 'Temp'
When 'U' Then 'User Temp'
In this example the conditions are more complicated than just comparing a single column to a set of values.
When Salary > 100000 Then 1000
When Commision_Type = 'F' Then Salary * 0.10
Else Salary * Commision
End as Commission_Paid