is there a way for me to do it in a mysql delete statement? just out of curiosity, for instance, if i wanted to add duplicates later for whatever reason.
Paul DuBois wrote: > At 17:54 -0400 5/10/02, Augey Mikus wrote: > >> what i meant is deleting duplicate occurences of records of a certain >> field. ...sorry... > > > Ah. > > One thing you can do is add a unique index on that field with > ALTER IGNORE TABLE tbl_name ADD UNIQUE (col_name) > or > ALTER IGNORE TABLE tbl_name ADD PRIMARY KEY (col_name) > > and MySQL will clobber duplicate records as it builds the index. > >> >> >> Paul DuBois wrote: >> >>> At 17:16 -0400 5/10/02, Augey Mikus wrote: >>> >>>> what is the simplest way to delete duplicate occurences of a >>>> specific field in mysql? >>>> >>>> thanks, >>>> >>>> augey >>> >>> >>> >>> Your question is a bit ambiguous. You could do this by using ALTER >>> TABLE to remove the column itself from the table, for example, but >>> I'm guessing maybe that's not what you mean. >> > > --------------------------------------------------------------------- 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
