5.1 Property Graph Schema Objects for Oracle Database
The property graph PL/SQL and Java APIs use special Oracle Database schema objects.
This topic describes objects related to the property graph schema approach to working with graph data. It is a more flexible approach than the deprecated two-tables schema approach described in Handling Property Graphs Using a Two-Tables Schema, which has limitations.
Oracle Spatial and Graph lets you store, query, manipulate, and query property graph data in Oracle Database. For example, to create a property graph named myGraph, you can use either the Java APIs (oracle.pg.rdbms.OraclePropertyGraph) or the PL/SQL APIs (MDSYS.OPG_APIS package).
With the PL/SQL API:
BEGIN
opg_apis.create_pg(
'myGraph',
dop => 4, -- degree of parallelism
num_hash_ptns => 8, -- number of hash partitions used to store the graph
tbs => 'USERS', -- tablespace
options => 'COMPRESS=T'
);
END;
/
With the Java API:
cfg = GraphConfigBuilder
.forPropertyGraphRdbms()
.setJdbcUrl("jdbc:oracle:thin:@127.0.0.1:1521:orcl")
.setUsername("<your_user_name>")
.setPassword("<your_password>")
.setName("myGraph")
.setMaxNumConnections(8)
.setLoadEdgeLabel(false)
.build();
OraclePropertyGraph opg = OraclePropertyGraph.getInstance(cfg);