dbms_system.ksdwrt ================ In Oracle we do have ksdwrt for writing the customized alters into alert_log file as well trace files. These customized log information is very usefull to DBA while monitoringthe servers. Step 1:- ====== exec dbms_system.ksdwrt(2,CURRENT_DATE||'::NOTIFY:: '||' ****** Disk Space IS Very Less ... 90% Full ******'); PL/SQL procedure successfully completed. Step 2:- ======= SQL> select name,value from v$parameter where name='background_dump_dest'; NAME -------------------------------------------------- VALUE -------------------------------------------------- background_dump_dest D:\ORACLE\PRODUCT\10.2.0\ADMIN\DINESH\BDUMP Step 3:- ======= From alertdinesh_log Fri Nov 11 02:33:07 2011 11-NOV-11::NOTIFY:: ****** Disk Space IS Very Less ... 90% Full ****** In PostgreSQL, we don't have that feature. So,please find the below work arround for this in PostgreSQL. =================================...