ORA Database Error Messages ORA-01225: thread number string is greater than MAXINSTANCES string June 2, 2015 mpbod ORA-01225: thread number string is greater than MAXINSTANCES string Cause: The log is for a thread greater than the MAXINSTANCES argument. Action: Increase the value for MAXINSTANCES and resubmit the command. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)