Thanks. This fix problem. --- On Thu, 8/18/11, Robert Hanuschke <robert.hanuschke@xxxxxxxxxxxxxx> wrote: From: Robert Hanuschke <robert.hanuschke@xxxxxxxxxxxxxx> Subject: Re: ORACLE 11G data guard "real time apply " not work? To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx> Date: Thursday, August 18, 2011, 9:49 AM Another thing to check: Is your compatible parameter set to at least 11.1? Afaik, that's the minimum necessary. Best regards, Robert http://robertvsoracle.blogspot.com