Oracle中的copy from导数
http://docs.oracle.com/cd/E11882_01/nav/portal_6.htm
http://docs.oracle.com/cd/E11882_01/server.112/e16604/apb.htm#i641417
http://docs.oracle.com/cd/E11882_01/nav/portal_6.htm
http://docs.oracle.com/cd/E11882_01/server.112/e16604/apb.htm#i641417