Probably this is what you want

http://www.webyog.com/forums/index.php?act=ST&f=5&t=351&s=7cd9c97584811d72b9305d3e691ab28f

Karam
--- Daniel Crompton <[EMAIL PROTECTED]>
wrote:
> Out of interest is there any advantage of using a
> primary key?, or is it
> perfectly ok/normal not to specify one?.
> Im not quite sure what a primary does.  I only used
> a primary key on one
> table which had auto_increment column only because
> it forced me to add it.
> ??
> 
> 
> 
> > Hello
> >
> > I belive this is not the correct place to ask the
> > question. You can try your discussion forums at
> > http://www.webyog.com/forums for SQLyog specific
> > questions.
> >
> > Karam
> >to Outlook(TM).
> > http://calendar.yahoo.com
> 
> 
> 
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