topic Re: assign values to multiple variables with the case command in Splunk Enterprise

assign values to multiple variables with the case command

antonio147 — Fri, 26 Nov 2021 10:55:37 GMT

hi,
I have a question to ask: can you assign values to multiple variables in Splunk with the case command?
I need that based on a filter chosen in the dashboard, it performs a different search based on what has been selected.
I have a filter with options: red, green, yellow, blue, black
If you choose red, the search must be:
search field1 = A AND field2 = B
if you choose green:
search field1 = C AND field2 = D AND field3 = E
if you choose yellow:
search field1 = X AND field2 = Y
.....
I wanted to use a case like:
eval KK, HH, JJ = case (
color = "red", KK = A, HH = B, JJ = "",
color = "green", KK = C, HH = D, JJ = E,
color = "yellow", KK = X, HH = Y, JJ = "",
1 = 1, "INV")

It can be done?
Or do I have to use as many cases as there are variables I need in the search?

Tks
Bye
Antonio

Re: assign values to multiple variables with the case command

ITWhisperer — Fri, 26 Nov 2021 13:18:41 GMT

You can only assign to one field at a time - having said that, you could assign as a multi-value field and then use mvindex to assign the various parts to their respective fields.

Re: assign values to multiple variables with the case command

antonio147 — Fri, 26 Nov 2021 13:48:41 GMT

Hi ITWishperer,
Thanks for the reply.
That was what I was afraid of, I tried to search the community but to no avail.
Can you give me an example?
I haven't used mvindex yet, if I understand correctly, do I create a new field with the values I need and then do the split? to have the values separated and with coalesce do I check when it is null?

Tks

Re: assign values to multiple variables with the case command

ITWhisperer — Fri, 26 Nov 2021 14:00:02 GMT

Something like this

| eval mv = case ( color = "red", mvappend(A,B,""), color = "green", mvappend(C,D,E), color = "yellow", mvappend(X,Y,""), 1 = 1, mvappend("INV","INV","INV")) eval KK = mvindex(mv,0), HH = mvindex(mv,1), JJ = mvindex(mv,2)

Re: assign values to multiple variables with the case command

antonio147 — Fri, 26 Nov 2021 15:01:44 GMT

I had tried something like this but without mvappend .... 🙂
Tks for your solution so it works great !!!