Yes it is..
Jim

>Jim,
>
>What's the purpose of this calculation? Is it to create a unique key?
>
>>All,
>>
>> I have a table with 43,000 records in it. One of the fields calls a stored procedure to get it's default value when a record is appended. If I append a record from either the data session or code I get a "Cannot write to record because it's in use." The stored procedure code uses a calculate command to find the max value for the field. If I remove the stored procedure from the default value I can append a new record. Is there something I am doing wrong? Has anyone else run into this problem? Is there a way to get around it?