In our enterprise, computer is assigned to user who in event of any damage is responsible for it.

the computer is leased to user based on paper agreement, signed agreement is scanned and attached to asset in service desk.

what i would like to do:

1. assign assets to user via database.

2. attach scanned agreement to asset via database.

Our support said that "database operations are not supported", 

in case of   assets assign, they gave as 2 tables ResourceAssociation and ResourceAssociationHistory,

in case of attach scanned agreement,  the problem seems to be with AttachmentKey generated for Attachment, that nobody  know how to generate,

what we need is a way to be able synchronize "paper agreement generator" database, with ServiceDesk Database to prevent staff from repeats 3 times the same work.

any idea how to do it safely?

best regards.