i have a column document_id numeric(12,2) . In the web application a user can
make versions of this document (much like a content manaagement application)
when user saves this document i am creating a new document_id eg-if the original doc_id is 10 then new document_id will be 10.1 so when user again modify this document the document_id will become 10.11 (i have limitation can't make new doc_id 10.2).In this way i can only make two versions of a document.
please suggest a solution to overcome this problem thanks.

Explain why you can't make document 10.2. Why this limitation?