A RecordKey uniquely identifies a record in the MDM Hub. A record is a collection of fields that include a list of names and values. Each name in the record must be unique.
You can use a combination of the following parameters to identify a record:
rowid. The ROWID_OBJECT column value of the record.
systemName. Name of the system to which the record belongs.
sourceKey. The PKEY_SRC_OBJECT column value of the record.
GBID. Global Business Identifier of an object. You can use one or more GBIDs.