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Home -> Community -> Mailing Lists -> Oracle-L -> Re: update year in date column
Barbara,
You could look at using the add_months() function... Just add -12,000 months like the statement below:
SQL> select sysdate, add_months(sysdate, -12000) from dual;
SYSDATE ADD_MONTHS(SYSDATE,-
-------------------- --------------------24-mar-2004 08:42:07 24-mar-1004 08:42:07
Regards,
Mark.
Barbara Baker
<barbarabbaker_at_yah To: oracle-l_at_freelists.org
oo.com> cc:
Sent by: Subject: update year in date column
oracle-l-bounce_at_fr
eelists.org
24/03/2004 07:00
Please respond to
oracle-l
OK, I'm just going to bite the bullet and claim total
ignorance here and see if someone takes pity on me :(
(sad face a nice touch, eh?)
Someone has accidently updated 378 records in the customer table. The date changed from 1999 to 2099. I need to change just the year back to 1999 for these records. (I'd like to keep the time stamp, if possible. The month and day are correct.) I looked on metalink, google, and asktom. Some nice examples, but not what I really need.
Thought I'd be clever and subtract 1000 from the date. This works, but I don't know how to get it formatted back into a date.
I'd prefer just sqlplus, but will use pl/sql if necessary.
Here's what I've done so far:
(solaris 9 oracle 9.2.0.4)
JServer Release 9.2.0.4.0 - Production
DOC> CUSNO CUSNAME
CRDATE
DOC>---------- -----------------------------------
SQL> ---update advdb.custtest_barb SQL> ---set crdate= to_char(crdate,'MM/DD/YYYY')) SQL> ---from customer where cusno=798489; SQL> SQL> select to_date(to_char(crdate,'ddmmyyyy')-1000),'MM/DD/YYYY') 2 from customer where cusno=798489;select
*
ERROR at line 1:
ORA-00923: FROM keyword not found where expected
SQL> SQL> SQL> --- these both work SQL> select to_char(crdate,'ddmmyyyy') fromcusttest_barb where cusno=798489;
TO_CHAR(
SQL> select to_char(crdate,'ddmmyyyy') - 1000 from custtest_barb where cusno=798489;
TO_CHAR(CRDATE,'DDMMYYYY')-1000
16091099
Thank for any assistance.
Barb
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