Splunk Search

How to edit my search to determine if a field has a null or blank value?

dan_pudwell
Explorer

I'm trying to determine whether a field has a value but my search isn't giving me expected results, I've tried this:

search ... | eval agentOrClient = if(detail.agentRefNo == "", "client", "agent") | table agentOrClient

This always returns agent even though the field is blank
I have also tried isnull and that gives the same result

Tags (5)
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1 Solution

javiergn
SplunkTrust
SplunkTrust

To test for NULL or blank use the following instead:

search ... 
| eval agentOrClient = if('detail.agentRefNo' == "" OR isNull('detail.agentRefNo'), "client", "agent") 
| table agentOrClient

Also because of the dot in your field name it is a good practise to use single quotes when referring to the field name from within an eval statement.

View solution in original post

javiergn
SplunkTrust
SplunkTrust

To test for NULL or blank use the following instead:

search ... 
| eval agentOrClient = if('detail.agentRefNo' == "" OR isNull('detail.agentRefNo'), "client", "agent") 
| table agentOrClient

Also because of the dot in your field name it is a good practise to use single quotes when referring to the field name from within an eval statement.

dan_pudwell
Explorer

perfect, thanks!

0 Karma

javiergn
SplunkTrust
SplunkTrust

No worries. Please don't forget to mark this as answered if you like the response so that others can benefit from it in future.

0 Karma
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