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Some fun from the Angry DBA site – http://web.archive.org/web/20050206023801/http://www.angrydba.com/ Contents: Why are DBA’s angry? Angry DBA stories Is your DBA angry? Angry DBA Gallery How to make your DBA angry DBA Jokes Are you an angry DBA? The website disappeared … Continue reading →

Found this error on upgrade to 11gR2 trying to call Oracle Reports from within database: ERROR at line 1: ORA-20001: Error for submit_report. Report: ab_batch. Error -29273 ORA-29273: HTTP request failed ORA-06512: at “SYS.UTL_HTTP”, line 1722 ORA-24247: network access denied … Continue reading →

I found I had to disable the virbr0 network interface to get Oracle RAC 11gR2 11.2.0.2 to install correctly (on RHEL 5.8 64 bit 2.6.18-308.el5 with ocfs2). Problem was that root.sh failed on the second node. The error recorded in … Continue reading →

Problem today where one hourly cron MV refresh hung (waiting on “SQL*Net message from dblink”), causing the other refreshes to queue up waiting on locks, eventually using up all the session so users got “ORA-00018: maximum number of sessions exceeded” … Continue reading →

http://createqrcode.appspot.com/ is good for creating QR Codes. Don’t use www.qrtag.net, because they redirect the URL to point at their own website.

List out users by last activity in Atira’s Pure Research Information System with: SELECT a.username , u.name_first_name forename , u.name_last_name surname , TRUNC ( MAX ( a.entry_date ) ) last_audit_entry FROM audit_entry a , users u WHERE a.username = u.username(+) … Continue reading →

This SQL works for all years from AD 9 onwards: SELECT ’2011′ , ’2011′ || ‘/’ || SUBSTR ( 1 + TO_NUMBER ( ’2011′ ) , -2 ) formatted FROM DUAL ; Results: ’201 Formatted —- ——— 2011 2011/12

My notes from the 2012 Oracle User Group Scotland Conference:

Steve Feuerstein here: There are two forms of code documentation: external and internal. External documentation is descriptive information about a program which is written and stored separately from the program itself. Internal documentation, also known as inline documentation or comments, … Continue reading →

This is the extreme limit for oracle dates: alter session set nls_date_format = ‘Dy DD-Mon-YYYY AD’ ; select sysdate, to_date(’01-JAN-4712 BC’,'DD-MON-YYYY AD’), to_date(’30-DEC-9999 AD’,'DD-MON-YYYY AD’) from dual ; Without encountering this error: ORA-01841: (full) year must be between -4713 and … Continue reading →