[EpiData-list] preventing duplicate entries - ps

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Wed Dec 9 08:55:36 CST 2009

That did the trick. Thanks.

Christopher W. Ryan, MD
SUNY Upstate Medical University Clinical Campus at Binghamton
425 Robinson Street, Binghamton, NY  13904

"If you want to build a ship, don't drum up the men to gather wood, 
divide the work and give orders. Instead, teach them to yearn for the 
vast and endless sea."  [Antoine de St. Exupery]

epidata-list at lists.umanitoba.ca wrote:
> Marking the record as deleted does not get rid of the record. You have 
> to Pack the file to eliminate the deleted records (Tool menu)
> Jamie Hockin
> Chris wrote:
>> Now this is even more interesting: if I write down the two records 
>> cited in the error message about duplicate values on CONTROL, then 
>> inactivate the key unique requiremnt, then open the file successfully, 
>> then mark one of the DEL (deleted), save the file, exit EpiData, then 
>> reactivate the key unique requirement, then try to reopen the file for 
>> data entry, I get the exact same error message: those same two records 
>> are cited as duplicated on CONTROL, even though one of them is now 
>> marked DEL.
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