How write to alert.log
connect / as sysdba
begin
sys.dbms_system.ksdwrt(2, to_char(sysdate)||' --- some message writes to alert.log --- ');
end;
/
connect / as sysdba
begin
sys.dbms_system.ksdwrt(2, to_char(sysdate)||' --- some message writes to alert.log --- ');
end;
/