This constructor creates an instance of the
OracleRef class with a connection and a HEX string that represents an
REF instance in the database.
// C# public OracleRef(OracleConnection con, string hexStr);
A HEX string that represents an
REFinstance in the database.
ArgumentException - The HEX string does not represent a valid
REF in the database.
ArgumentNullException - The connection or HEX string is null.
InvalidOperationException - The
OracleConnection object is not open.
OracleRef instance is created, it is referenced to a specific table in the database.
The connection must be opened explicitly by the application.
OracleRef does not open the connection implicitly.