Re: CIT_ID Column in ITSM_CONFIGURATION_ITEMS table
In general, the OID is the primary key in the database for the table. This value will appear as the foreign key in related tables. You never see OIDs in any forms or views.
The ID for CIs is the value you see in the field ID. It is assigned automatically by OVSD. I do not think it should ever have duplicates. It is simply a sequential integer, incremented for each new CI.