db_version identifies the realm server data store to the
mangos-zero server by prodiving a bit field with a revision
number/name combination as name.
Descriptions for each field with their meaning, usage and relations are available below.
A version string, describing the release version of the database content.
A version string, describing the release version of the scripted creature AI.
This field is used to indicate the last database structure update applied. Each applied update will renamed the field, in order to allow users to select the required database upgrade query from the provided upgrade queries.