In SSRS 2005 I have a table with a dataset linked to it.
I want to check if the value of a field is null and if it is not null then format the data to make sure it has one d
I would try using ISNULL(fieldname, 0) when querying for your dataset.
If you are connecting to a datasource without an ISNULL operator (ie. Oracle) then try using COALESCE(fieldname, 0), which iSeries, oracle and sql all support.