Ignoring Null Values From Form In Query

Mar 21, 2006

I have a form with 4 different search fields used to query a table and limit results: Policy#, SSN, Credit_Amt, Debit_Amt. Any matching rows based on the search criteria are returned in a subform.

My problem is how to handle any fields where the user doesn't specify a search value.

In my query, I have the Criteria set to:
Field: Policy_No
Criteria: =[Forms]![form name]![Policy#]

Field: SSN
Criteria: =[Forms]![form name]![SSN]

and so on....

If I place my criteria on different OR lines, the query runs, but if a user specifies more than 1 criteria, I get all the data for one criteria(such as policy# matches) and all the data for the second criteria(such as all the records for a certain credit_amt, regardless of Policy #).

If I place my criteria on the same criteria line, effectively making it AND, I get no results because I assume the database is looking for any blank search field values.

So, how do I make the query an "AND" query, but actually get results by ignoring any NULL search fields? So if a user enters a Policy# and Credit_Amt, the results will be only matching rows by Policy# AND Credit_Amt, and doesn't look at SSN and Debit_Amt.

I've tried different iterations using IIF(Not IsNull(.... to no avail.

Thanks!

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