dblink

create public database link LINK_QD
connect to OBIMINTERUSER identified by c5lul7831
  using ' (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 133.64.39.133)(PORT = 1521))
          (ADDRESS = (PROTOCOL = TCP)(HOST = 133.64.39.144)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = stucidb)
    )
  )';