Date Calculation fails on Converted Access to Oracle Migration

Question

I have converted an Access application to oracle database.
A select query calculates the months between the system date and a date stored in the Oracle Tables and it works you can view the results.
Another program using this query as source fails with a message
ODBC--Call Failed
[Oracle][ODBC][Ora]ORA-30081:invalid data type for datetime/interval arithmetic(#30081
This select query works displays the calculated “MONTHS_OLD” column
SELECT PR_main.PR_NUMBER, PR_main.SUBMISSION_DATE, Int((Now()-PR_main!submission_date-1)/30) AS Months_old, Int(Now()-[PR_main]![submission_date]) AS Days_old, PR_main.PROGRAM_ID, ATA_chapter_list.ATA_FUNCTIONAL_GROUP, PR_main.CURRENT_STATE
FROM PR_main INNER JOIN ATA_chapter_list ON PR_main.ATA_CHAPTER = ATA_chapter_list.ATA_CHAPTER_NUMBER
WHERE (((PR_main.CURRENT_STATE) Not Like "*Closed*"));
This query using the query above as the source, gives you the error
SELECT Count(ATA_time_query!pr_number) AS Count30, ATA_time_query.ATA_FUNCTIONAL_GROUP, ATA_time_query.PROGRAM_ID
FROM ATA_time_query
WHERE (((ATA_time_query.Months_old)<1))
GROUP BY ATA_time_query.ATA_FUNCTIONAL_GROUP, ATA_time_query.PROGRAM_ID;

Answer 1

I dont understand what you are asking? I think u are saying a part of our transformation is not right? Can you be specific about the function or where this is broken for you?