Hey Mark,

>SELECT GREATEST(ldRfHrsDt, ldRfPartDt, ldRfMroDt, ldRfExpDt, ldRfShipDt) INTO ldNewTtlDt from dual;

This works. I was not getting any errors. I just wasn't getting a value in the final variable. It would seem that there were NULL values in some of the variables I was comapring. I'll adjust that when I populate them.

Thanks again for your help
Mike