Not all features are available in all versions or driver modes. Any attempt touse Oracle features that are not supported by a particular mode or clientlibrary/database combination will result in runtime errors.Thenode-oracledb attributes oracledb.thin, pool.thin andconnection.thin can be used to see what mode a connection is in. In theThick mode, the attribute oracledb.oracleClientVersion can be used todetermine which Oracle Client version is in use. The attributeconnection.oracleServerVersionString can be used to determine whichOracle Database version a connection is accessing. These attributes can beused to adjust application feature usage appropriately.