On Sat, 2004-08-07 at 05:00, Kenneth Gonsalves wrote:
> why shouldnt the primary key change? the only key that should never change is 
> a key that is used as a foreign key in another table. In a table like this:
> 
> id serial unique
> name varchar primary key
> 
> name may change - id will never change. id is used as the foreign key

It can change if you use ON UPDATE CASCADE in the foreign key
definitions.

-- 
Oliver Elphick                                          [EMAIL PROTECTED]
Isle of Wight                              http://www.lfix.co.uk/oliver
GPG: 1024D/A54310EA  92C8 39E7 280E 3631 3F0E  1EC0 5664 7A2F A543 10EA
                 ========================================
     "Be still before the LORD and wait patiently for him;
      do not fret when men succeed in their ways, when they
      carry out their wicked schemes." 
                            Psalms 37:7 


---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster

Reply via email to