Oracle 建议撤消 PUBLIC 对功能强大的程序包的 E..

程序包  UTL_FILE

程序包  DBMS_RANDOM  UTL_HTTP  UTL_SMTP  UTL_TCP

解决：

revoke execute on utl_file from public;

revoke execute on DBMS_RANDOM from public;

revoke execute on UTL_HTTP from public;

revoke execute on UTL_SMTP from public;

revoke execute on UTL_TCP from public;