Tip

Who is logged into the database?

Here is a shell script that will list all the Oracle users that are logged in to all databases on your HP-UX machine. 

#!/bin/ksh
export ORAENV_ASK=NO
ps -ef | grep -i oracle | grep "LOCAL=" | grep -v grep  |cut -d"?" -f2- | cut -
d"oracle" -f2- | cut -c6- | cut -d" " -f-1 | sort -u |while read ORACLE_SID

do
  . oraenv
# echo $ORACLE_SID
  sqlplus -s internal << EOF
    set verify off 
    set feedback 0
    set lines 133
    set pages 0
    column osuser format a18
    col name noprint new_value dbname
    select name from v$database;

    select '&dbname' , s.osuser
    from v$session s, v$process p
    where
      s.paddr = p.addr and
      s.type != 'BACKGROUND' and
      s.osuser is not null and
      s.osuser !='oracle' and
      s.audsid != userenv('SESSIONID') and
    union all
    select '&dbname' , s.schemaname
    from v$session s, v$process p
    where
      s.paddr = p.addr and
      s.type != 'BACKGROUND' and
      s.osuser is not null and
      s.osuser ='oracle' and
      s.audsid != userenv('SESSIONID') ;
    exit
EOF

done

About the Author

James Giordano is an Oracle database administrator. He has been working with Oracle for about seven years, and also has experience with UNIX and PeopleSoft/Oracle financials.

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This was first published in January 2002

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