You could assign an on insert trigger on the table. The logic in the trigger 
could guarantee each row has a value that makes it unique based on random 
numbers.

Ken

On Mon 06/04/12, at  1:03, Michael J. Sinclair <[email protected]> wrote:



Hi Bill,
I don't think GUID is available in Rbase 9.5 (32), only Rbase 9.5 (64).
 
I can live with the Random number generator picking numbers between 0 and 
999999999.
What I really need help with is how to make the EEP work with all rows 
including the last row. I think what I am looking for is something like ON EXIT 
ROW EEP, but I don't think that is an option anymore. Which EEP (Scrolling 
Region EEP vs DBedit field EEP) would be the correct place to put the EEP?
Mike--- On Mon, 6/4/12, Bill Downall  wrote:
From: Bill Downall Subject: [RBASE-L] - Re: How to assign unique values to a 
column within a formTo: "RBASE-L Mailing List" Date: Monday, June 4, 2012, 
11:33 AM
Mike,

If you are using 9.5, you should use GUID for this. See the 9.5 help.

Bill
On Mon, Jun 4, 2012 at 11:25 AM, Michael J. Sinclair <[email protected]> 
wrote:





Hi All,
In Rbase 9.5 32, I have a form with a scrolling region. 
I would like to assign a unique value to column such that each new row has a 
unique random value.
For other columns, I would like to have all the new rows have the same value 
such as today's date.
I know I can do this easily in the add variable / expression builder area, but 
somebody said that is not a great way to do it because it can slow down the 
form since each expression is recalculated evertime a field is exited. 
When I try to add rows, I tried using an ON EXIT EEP from a field to update the 
column with a unique flag, like this....
 
SET VAR vrand = (RANDOM(999999999))
UPDATE tablename SET column name = .vrand WHERE uniqueflag IS NULL
(I know I have 1 chance in 999999999 that the value won't be unique, I can live 
with that)
 
That seems to work for every row except the last row I add. The last row does 
not get any value.
 
What is the right way to give each new row a unique column value within a 
scrolling region? I think my problem might that I am choosing the wrong type 
off EEP. Is there an ON EXIT ROW EEP?
 
Mike


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