Hi Aimee, Isaiah is right re the UID format and you can find the docs here:
https://docs.dhis2.org/master/en/developer/html/webapi_system_resource.html#d0e11354 Note that the number of possible UID combinations are 5.2 x 10^19, or about 50 million trillion, so I would perhaps rather focus on generating properly randomized UIDs and not worry so much about collisions. best regards, Lars On 9 February 2018 at 02:17, Isaiah Nyabuto <isaiahnyab...@gmail.com> wrote: > Hi Aimee, > > What is the length of the UIDs? The dhis2 accepts UID length of 11 and can > accept any other types (letters and numbers) so long as the first one is a > letter. > > If you want to avoid duplication of UID, the easiest way is by generating > them yourself using other tools or languages. > See the following example on UID generation. > https://github.com/jason-p-pickering/dhis2-data-munging/ > blob/master/bootstrap/bootstrap.Rmd > > Thank you. > ========================== > Isaiah Nyabuto > +254729572616 <+254%20729%20572616> > Bsc. Health Records Management and Informatics > > > On Feb 8, 2018 16:32, "Aimee Edmondo" <aedmo...@akros.com> wrote: > > Greetings all, > In Zambia we are investigating the possibility of having sub instances of > tracker capture that feed into a main instance, but we want to avoid the > issue of duplicate UIDs coming from the sub instances. We were hoping to > add a prefix onto the automatic UID generation - such as NG#######, where > the prefix "NG" remains consistent and the numbers are automatically > generated. We've experimented with the UID options and the system does not > accept this pattern. Has anyone successfully done this before or have any > ideas as to how to do this? > Thanks, > *Aimee Edmondo, MPH* | Informatics Associate > aedmo...@akros.com <acmar...@akros.com> | +260.976.076524 > > _______________________________________________ > Mailing list: https://launchpad.net/~dhis2-users > Post to : dhis2-us...@lists.launchpad.net > Unsubscribe : https://launchpad.net/~dhis2-users > More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > Mailing list: https://launchpad.net/~dhis2-users > Post to : dhis2-us...@lists.launchpad.net > Unsubscribe : https://launchpad.net/~dhis2-users > More help : https://help.launchpad.net/ListHelp > > -- Lars Helge Øverland Lead developer, DHIS 2 University of Oslo Skype: larshelgeoverland l...@dhis2.org http://www.dhis2.org <https://www.dhis2.org/>
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