This figure shows the PGQL query execution flow against a SQL property graph in Oracle Database.

The illustration contains two boxes (top and bottom) with a double-arrowhead line with the label JDBC between them.

The top box is labeled PGQL on RDBMS.

The bottom box shows the scalable and persistent storage (Oracle Database) that includes the original and the internal graph element tables. Oracle Database communicates with the PGQL on RDBMS component.