This section describes the APIs to execute SELECT queries in the graph server (PGX).

• Executing SELECT Queries Against a Graph in the Graph Server (PGX)
  The PgxGraph.queryPgql(String query) method executes the query in the current session. The method returns a PgqlResultSet.
• Executing SELECT Queries Against a PGX Session
  The PgxSession.queryPgql(String query) method executes the given query in the session and returns a PgqlResultSet.
• Iterating Through a Result Set
  There are two ways to iterate through a result set: in a JDBC-like manner or using the Java Iterator interface.
• Printing a Result Set
  The following methods of PgqlResultSet (package oracle.pgx.api) are used to print a result set: