3-Tier Architecture
===================

Below APIs are for using the Oracle Graph Server (3-tier usage). For APIs to execute PGQL against Oracle Database (2-tier usage), please see :doc:`../../opg4py/prog-guides/index`.

.. toctree::

   instance
   adb_client
   accessing-properties
   pgql_subgraph_loading
   mutation-subgraph/index
   graph_sync
   transient-data
   versioning/index
   analyst
   graph-pattern-matching/index
   frames
   mllib/index
   custom-algorithms
   udfs