这个命令报错
RMAN> list script names;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06002: command not allowed when not connected to a recovery catalog
RMAN>
RMAN> list script names;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06002: command not allowed when not connected to a recovery catalog
RMAN>