This is my database now...I will use the item_id for the order but what if I
want to change item_id 3 to item id 1? How can I push all the items down one
place? How can I delete any gaps when items are deleted.
CREATE TABLE `board_papers` (
`id` int(4) NOT NULL auto_increment,
`doc_date` varchar(10) NOT NULL default '0000-00-00',
`article_type` enum('agenda','minutes','paper') NOT NULL default 'agenda',
`fileName` varchar(50) NOT NULL default '',
`fileSize` int(4) NOT NULL default '0',
`fileType` varchar(50) NOT NULL default '',
`content` blob NOT NULL,
`item_id` int(10) default NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=8 ;
""Ross"" <ross@xxxxxxxxxxxxx> wrote in message
news:6C.5F.05123.70D27544@xxxxxxxxxxxxxxx
>
> Just say I have a db
>
> CREATE TABLE `mytable` (
> `id` int(4) NOT NULL auto_increment,
> `fileName` varchar(50) NOT NULL default '',
> PRIMARY KEY (`id`)
> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=7 ;
>
>
> when I add items they go id 1,2,3 etc. Whn I delete them gaps appear. 1,
> 3, 7. I need to know
>
> (a) when items are removed how can I sort the database to all the gaps are
> take out 1, 3, 7 becomes 1,2,3
>
> (b) allow the ids to be changed so the items can change position in the
> list. If I change id 3 to id 1 then everything else shifts down.
>
> If anyone has seen the amazon dvd rental list where you can swap dvd to
> the top of the list and delete this is what I am trying to achive with
> php/mysql.
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