Understanding an IIf statement

[grampygrumpy]

Appreciate someone explaining the following formula. Thank you

ExclusionSW: IIf(([CallType] Like "Insurance*") And ([CallType2] Is Null),1,IIf(([CallType] Like "ChgOrder*") And ([ProductLine] Is Null),1,0))

 

[alansidman]

If field name "CallType" has a record Insurance plus something else and field name "CallType2" for the same record is Null then the value will be the number 1, however if
field name "CallType" has a record ChgOrder plus something else and the field name ProductLine for the same record is Null then the value will be the number 1. If neither of these assumptions are true then the value will be zero. The asterisk

 

[alansidman]

... the asterisk is a wildcard.

EDIT: PC shut down before I was able to finish.

 

[Joe4]

Cross posted at: Decode an IIf query

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