This topic explains how you can execute PGQL queries directly against the graph in Oracle Database (as opposed to in-memory).

Property Graph Query Language (PGQL) queries can be executed against disk-resident property graph data stored in Oracle Database. PGQL on Oracle Database (RDBMS) provides a Java API for executing PGQL queries. Logic in PGQL on RDBMS translates a submitted PGQL query into an equivalent SQL query, and the resulting SQL is executed on the database server. PGQL on RDBMS then wraps the SQL query results with a convenient PGQL result set API.

Property graph data in RDBMS can exist either in the property graph schema tables or as a property graph view on the Oracle Database tables.

The following topics explain in detail how you can execute PGQL queries against the graph in the Oracle Database:

• Executing PGQL Queries Against Property Graph Schema Tables
  This topic explains how you can execute PGQL queries directly against the graph stored in property graph schema tables.
• Executing PGQL Queries Against Property Graph Views
  This topic explains how you can execute PGQL queries directly against the property graph views on Oracle Database tables.