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Oracle® Spatial and Graph Topology Data Model and Network Data Model Graph Developer's Guide
12c Release 1 (12.1)

E17897-10
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Changes in This Release for Oracle Spatial and Graph Topology Data Model and Network Data Model Graph Developer's Guide

This preface contains:

Changes in Oracle Database 12c Release 1 (12.1)

The following are changes in Oracle Spatial and Graph Topology Data Model and Network Data Model Graph Developer's Guide for Oracle Database 12c Release 1 (12.1).

New Features

The following features are new in this release:

Feature Modeling in the Network Data Model

You can model objects of interest along the network as features. A feature consists of one or many feature elements. A feature element can be a point, a link, or a partial link along the network. You can define feature layers on top of a network. For example, restaurants, and hotels can each be defined as a feature layer on a road network, and switches can be defined as a feature layer on an electrical network.

For more information about feature modeling, see the following:

Multimodal Network and Temporal Modeling Support

Multimodal networks consist of multiple modes of transportation. Many metropolitan transportation networks consist of multiple modes such as buses, subways, and commuter rail lines, where transfers across modes are possible (for example, from a bus to the subway). Each transportation mode has a component network within the larger transportation network, and has its own schedule-related information. The component networks can be modeled using nodes and links, and the transfers across modes can be modeled as links that connect the stops where transfers are possible.

For more information about support for multimodal networks and temporal modeling and analysis, see the following:

New part_size_tolerance Parameter for SDO_NET.LOGICAL_POWERLAW_PARTITION

The SDO_NET.LOGICAL_POWERLAW_PARTITION procedure has a new (additional) parameter named part_size_tolerance, which specifies the allowed tolerance in partition size expressed as a percentage of max_num_nodes.

Java in-Memory API and SDO_NET_MEM Package Desupported

The Java in-memory API and the related SDO_NET_MEM PL/SQL package, previously announced as deprecated, have been removed from this manual. (The documentation for these features remains in the Release 11.2 manual.) You are instead encouraged to use the load-on-demand approach.

Other Changes

The spatial product name has been changed from Oracle Spatial to Oracle Spatial and Graph, also referred to as Spatial and Graph.

The network data modeling feature name has been changed to Network Data Model Graph.