grant select on sys tables

I prefer to use a powerful named user with dba rather than sys. It is more conform to the security policies in place regarding accounting of administrator operations. Very occasionaly, my user get ORA-1031 insufficient privileges even if I have the dba role. Amoung others, I have “PURGE DBA_RECYCLEBIN” and DBMS_STREAMS_AUTH.GRANT_ADMIN_PRIVILEGE update, 2012-07-24 For purge […]

remove the current directory

Can I remove the current directory? I used to believe you cannot. Solaris: $ uname -s SunOS $ mkdir /tmp/bla $ cd /tmp/bla $ rm -r /tmp/bla rm: Cannot remove any directory in the path of the current working directory /tmp/bla $ AIX: $ uname -s AIX $ mkdir /tmp/bla $ cd /tmp/bla $ rm […]

American = fast

I had the incredible behavior of having the same query running 10x faster in sqlplus depending on two different PCs. After analysis, I realised the super fast pc was American… at least in nls_lang Slow client: PC setup in German, NLS_LANG is set to GERMAN_SWITZERLAND.WE8MSWIN1252 C:\>set NLS_LANG=GERMAN_SWITZERLAND.WE8MSWIN1252 C:\>sqlplus scott/tiger@db01 SQL*Plus: Release 11.2.0.3.0 Production on Fr […]

How to quit crontab -e without overwritting cron

Imagine my crontab * * * * * /usr/bin/date > /tmp/foo I am writing the date to /tmp/foo every minute $ cat /tmp/foo Thu Jul 5 08:45:01 CEST 2012 Now I want to view my crontab in my EDITOR (vi). $ crontab -e I do not quit yet. In the meantime, my colleague modify the […]