The invention discloses a
data dictionary management method and device of a
database, equipment and a storage medium. According to the technical scheme provided by the embodiment of the invention, the
reference counting mechanism is implemented on the
metadata in the
data dictionary, but under the conditions that the reference count of the stored
metadata is reduced to zero and the memory of the
data dictionary is sufficient, the stored
metadata of which the reference count is zero is not deleted, but the stored metadata are temporarily reserved in the data dictionary, so that the reference count of the stored metadata is reduced to zero. Therefore, when the same stored metadata is accessed subsequently, the scanning time of a
database system and the memory
application time of the data dictionary are reduced, the
response time of the data dictionary is effectively shortened, the access efficiency of the data dictionary is improved, meanwhile, the memory resource waste of the data dictionary is avoided, and the user experience is improved. And the
resource utilization rate of the data dictionary of the
database is improved.