Question

I have an Excel sheet and have this formula below. I would like to calculate the same formula with sql. In excel formula there is a nested if condition. Is it possible with sql ? I have tried with “Case .. When .. Then .. Else ..” but I could not manage! In my excel sheet this calculation result is “OK”

Thank you,

Declare @ProjectName nvarchar(max)
Declare @NewTotalElapsedTimeEnd nvarchar(max)
Declare @TotalElapsedTime nvarchar(max)
Declare @SlaTime nvarchar(max)
Declare @Result nvarchar(max)

set @ProjectName = ''
set @NewTotalElapsedTimeEnd = 0
set @TotalElapsedTime = 69563
set @SlaTime = 86400

Excel Formula

=IF(ProjectName<>"","PROJECTED",IF(NewTotalElapsedTimeEnd=0,IF(TotalElapsedTime-SlaTime<0,"OK","NOK"),IF(NewTotalElapsedTimeEnd-SlaTime<0;"OK";"NOK")))

Answer 1

this should help you (done on MS SQL Server, maybe your database system needs small changes to syntax). Case-when is working fine, but you need to have your timespan values as a number for being able so substract.

Cheers.

Declare @ProjectName nvarchar(max)
Declare @NewTotalElapsedTimeEnd int
Declare @TotalElapsedTime int
Declare @SlaTime int
Declare @Result nvarchar(max)

set @ProjectName = ''
set @NewTotalElapsedTimeEnd = 0
set @TotalElapsedTime = 69563
set @SlaTime = 86400

SET @Result =
    CASE WHEN @ProjectName <> ''
    THEN 'PROJECTED'
    ELSE
        CASE WHEN @NewTotalElapsedTimeEnd = 0
        THEN    
            CASE WHEN @TotalElapsedTime < 0
            THEN 'OK'
            ELSE 'NOK'
            END     
        ELSE
            CASE WHEN (@NewTotalElapsedTimeEnd - @SlaTime) < 0
            THEN 'OK'
            ELSE 'NOK'
            END
        END
    END

SELECT @Result