Grigore Dolghin wrote:
> I completely, wholehearted, 100% agree. GUID is the WAY to go -
> started using them as PKs back in 2004 I think, when I was asked to
> unify the databases of a program created by me and installed initially
> in two different locations. 1 year later they came and said "well,
> Grig, can you put them together?". Guess what, they were using
> integers identity as keys. Well, I was pretty much f*cked up for one
> week or so, writing scripts to re-sync those damn integers. Moved to
> GUIDs and never looked back.
> 

I'm certainly not getting it.
Go to destination location and add a field named original_pk
then append records from origin location putting the origin pk in 
original_pk (the actual pk will be autoincremented in destination). Then 
as you append the other tables (the ones that have pk as a foreign key) 
you check the pk/original_pk as a translation table and correct the 
reference and that's it. Of course it will get a bit more complicated as 
you'll have the same problem with mostly every table, but if you think 
it through a bit and get organized it's not such a big deal. The only 
concern is to start with the tables that have no foreign references and 
build it up from there (as there never are circular references in a 
proper built db).


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