tableau 行级计算

Question

I am trying to create a calculated field where it calculates the no. of days the case is with CSE ie, support engineers, for that I have created 2 calculated fields cse-anything(cse-A date) and anything - CSE (A-CSE Date).

I need to take the diff between these two date fields, but the problem is for a particular case it a case can move n no. of times to CSE. I need to find the diff between all the days and sum them up.

But the dates are in different level like:

case id  a-cse  cse-a
101       null   10/19/18
          null . 11/19/18
         9/19/18  null
         10/19/18 null

In A-CSE I have to replace the null values with 9/19/18 and 10/19/18 and find diff.

Answer 1

Assuming you have string null in the a-cse and a-cse is of string datatype.

Create a formula and write below code:

IF a-cse="null"
THEN
(REPLACE(a-cse,"null","9/19/18" ))
ELSE
a-cse
END

Create one more formula and write below code:

DATE(([Calculation1]))

Do same for both the columsn now both columns have date datatype you can get the difference