The problem is that you're setting all the rows to "%". The % symbol is only recognized as a wildcard in like expressions, as documented in the manual. Try this instead:
UPDATE words_bak1 SET word = LEFT(word, LENGTH(word) - 1) WHERE word LIKE "%s"; Steve Meyers > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Saturday, October 20, 2001 4:49 PM > To: [EMAIL PROTECTED] > Subject: UPDATE problem > > > > Hi, > > I am encountering a problem while I am updating records of a table. > Basically its a problem of updation of records using pattern matching. > I want all the recods that end with letter "s" be updated to record > without the letter "s" at the end. For eg, I want a record "things" > to be converted to "thing". > > When I give a query like this I get an error : > > mysql> UPDATE words_bak1 SET word = "%" WHERE word LIKE "%s"; > ERROR 1062: Duplicate entry '%' for key 1 > > my words_bak1 is like this : > +------------+----------+------+-----+---------+----------------+ > | Field | Type | Null| Key | Default | Extra | > +------------+----------+------+-----+---------+----------------+ > | wordid | int(11) | | PRI | 0 | auto_increment | > | word | char(20) | | UNI | | | | > | actualword | char(20) | YES | | NULL | | > +------------+----------+------+-----+---------+----------------+ > > Can someone tell me what the problem is and is there some way > to get around it.. > > -Amit > > > --------------------------------------------------------------------- > Before posting, please check: > http://www.mysql.com/manual.php (the manual) > http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail > <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
