Currently, database do not have creation time like we have for tables and partitions.
Currently, without creationTime there is no way to identify if the copy of Database which a client has is the same as the one on the server if the name is same. Without object ids creationTime value is the only way currently to identify uniquely a instance of metastore object. It would be good to have Database creation time as well.
Same applies for catalogs as well.