我试图关闭系统,然后我想挂载它。我试过这样做:Database closed.ORACLE instance shut down.ORA-12514: TNS:listener does not currently know of service requested in connect descriptorORA-24324: service handle not initialized
ORA-
我的问题是:FROM my_table@OTHER_DBd¿identification如果我跑了: substr(op_arv,2,1) AS t_substr,chr(ascii(substr(op_arv,2,1))) AS t_chr_asciiFROM my_table@OTHER_DB¿¿