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From: Frank on 13 May 2010 05:59

I have Table 1 with Field IDTable1 [autonumber] [and other fields] and Table
2 with Field IDTable2 [autonumber] and Field GRV set to text [and other
Fields]
Is the following posibble:
Can I automatically generate a number that can be used in GRV field of Table
2 consisting out of a combination of IDTable1 and IDTable2 written as
IDTable1/IDTable2 in the GV field of Table 2

I want this GRV number as a unique number identifying Table 1 and Table 2

Thanks for the help

From: Arvin Meyer [MVP] on 13 May 2010 09:06
You can, but shouldn't. All data in a table must identify the key. Foreign
Keys, which are the keys from IDTable1 (in Table2) should be a separate
field in table 2, and no field should be combined.

Using Access's built in subform system, you automatically generate the
linking value when you create the subform record.
--
Arvin Meyer, MCP, MVP
http://www.datastrat.com
http://www.accessmvp.com
http://www.mvps.org/access


"Frank" <Frank(a)discussions.microsoft.com> wrote in message
news:9897C5F2-47B6-4B9B-A784-5F1A8B0DB736(a)microsoft.com...
>
> I have Table 1 with Field IDTable1 [autonumber] [and other fields] and
> Table
> 2 with Field IDTable2 [autonumber] and Field GRV set to text [and other
> Fields]
> Is the following posibble:
> Can I automatically generate a number that can be used in GRV field of
> Table
> 2 consisting out of a combination of IDTable1 and IDTable2 written as
> IDTable1/IDTable2 in the GV field of Table 2
>
> I want this GRV number as a unique number identifying Table 1 and Table 2
>
> Thanks for the help
>


From: Frank on 28 May 2010 10:59
Thanks Arvin

We want to use the combination of teh two autonumbers in the two takles as a
numbercombination to identiify the user [table1] and a item [table2] as
unique to that user and item for futher reference
I will remember your inpur in developing a new database

Thnak for your time

Frank

"Arvin Meyer [MVP]" wrote:

> You can, but shouldn't. All data in a table must identify the key. Foreign
> Keys, which are the keys from IDTable1 (in Table2) should be a separate
> field in table 2, and no field should be combined.
>
> Using Access's built in subform system, you automatically generate the
> linking value when you create the subform record.
> --
> Arvin Meyer, MCP, MVP
> http://www.datastrat.com
> http://www.accessmvp.com
> http://www.mvps.org/access
>
>
> "Frank" <Frank(a)discussions.microsoft.com> wrote in message
> news:9897C5F2-47B6-4B9B-A784-5F1A8B0DB736(a)microsoft.com...
> >
> > I have Table 1 with Field IDTable1 [autonumber] [and other fields] and
> > Table
> > 2 with Field IDTable2 [autonumber] and Field GRV set to text [and other
> > Fields]
> > Is the following posibble:
> > Can I automatically generate a number that can be used in GRV field of
> > Table
> > 2 consisting out of a combination of IDTable1 and IDTable2 written as
> > IDTable1/IDTable2 in the GV field of Table 2
> >
> > I want this GRV number as a unique number identifying Table 1 and Table 2
> >
> > Thanks for the help
> >
>
>
> .
>
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