Issue with basic calculation causing card to error out

Catherin_Storey
Catherin_Storey Member
in Magic ETL

I am trying to do what I normally would think of as a basic calculation in beast mode, but it is continuting to error out my card as soon as I add it to the table.   I want to devide my revenue per client by the number of distinct cutomers.  My table looks like this

 

Client            Customers           Retail             Avg Customer

Smith                  4                     100                          25

 

in Excel I would calculate this as Retail/Customers, and it works fine.

 

So far in beast mode i have successfully written the count distinct portion as

(COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))))

I have validated that it is correctly counting my customers against my original data set, so that part is correct.

 

I then tried to use the count distinct in the calculation  of

`Retail`/ (COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))))

 

The formula validates when in Beast mode, but when I actually attempt to use it I reveive this error

An issue has occurred during processing. We are unable to complete the request at this time.
 
 I don't have a lot of SQL experience so I'm sure the answer is in front of my face, but I can not for the life of me figure out what I'm doing wrong.  There will always be a value for customers, so it shouldn't be a Divide by Zero error causing this, and I'm on day two of trying to get it right.

 

Best Answer

  • Valiant
    Valiant Coach
    Answer ✓

    Give this a shot. I think I ran into this a while back and had to include a CASE WHEN just in case there was the opportunity for a divide by 0.

     

    `Retail`/ 
    CASE WHEN 
         COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))) <> 0 
         THEN COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))) 
    ELSE 1 END

    Best of luck,

    Valiant

Answers

  • Valiant
    Valiant Coach
    Answer ✓

    Give this a shot. I think I ran into this a while back and had to include a CASE WHEN just in case there was the opportunity for a divide by 0.

     

    `Retail`/ 
    CASE WHEN 
         COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))) <> 0 
         THEN COUNT(DISTINCT (CONCAT(`Patient`,'',`Patient Address`,'',`Patient City`,'',`Patient Phone`))) 
    ELSE 1 END

    Best of luck,

    Valiant

  • Catherin_Storey
    Catherin_Storey Member

    Thank you so much!!  It worked.

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