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Re: SQL Views Dependency Issue

 

Hi,
Any update on this?

Thanks

On Thu, Oct 6, 2016 at 11:27 AM, chathura widanage <
chathurawidanage@xxxxxxxxx> wrote:

> Hi Lars,
>
> We have two sets of SQL Views,
>
> -----
> dnms nutrition last event (A)
> dnms nutrition psi pi map(B)
>
> Here A depends on B
> -------
> dnms risk last event (C)
> dnms risk psi pi map (D)
>
> Here C depends on D
> -------
>
> Problem is, from above two sets just the first set fails during
> maintenance procedure. Following your directions, I tried changing the
> names of the views to make B and D come Alphabetically before A and C. Then
> second set started to fail during maintenance.  Any reason for this to
> happen?
>
> Thanks,
> Chathura
>
>
>
>
>
> On Tue, Oct 4, 2016 at 3:41 PM, Lars Helge Øverland <lars@xxxxxxxxx>
> wrote:
>
>> Hi Chathura,
>>
>> currently the approach to achieve this is to rely on the alphabetical
>> ordering of SQL view names. For the scheduled tasks, the system first drops
>> the SQL views in *reversed* alphabetical order. Finally, the system
>> regenerates the SQL views in alphabetical order.
>>
>> So in your case where A depends on B, you should ensure that that the
>> name of SQL view B comes before the name of SQL view A alphabetically. This
>> way, the system will first drop A, then B, and when it is time to
>> regenerate the views, first generate B, then A, and you should be good.
>>
>> best regards,
>>
>> Lars
>>
>> On Tue, Oct 4, 2016 at 11:10 AM, chathura widanage <
>> chathurawidanage@xxxxxxxxx> wrote:
>>
>>> Dear Devs,
>>>
>>> We have two SQLViews created in DHIS2 v2.24 where one view depends on
>>> other one(Say, A depends on B). We have also scheduled an automatic
>>> maintenance event every day at 12.00 a.m. Problem is DHIS2 tries to drop
>>> view B first during this automated procedure and as a result whole
>>> procedure fails including analytics table generation.
>>>
>>> Is there a way to make DHIS2 scheduled event drop A before B in above
>>> case.
>>>
>>> Thanks & Regards,
>>> Chathura Widanage
>>>
>>> _______________________________________________
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>>>
>>>
>>
>>
>> --
>> Lars Helge Øverland
>> Lead developer, DHIS 2
>> University of Oslo
>> Skype: larshelgeoverland
>> lars@xxxxxxxxx
>> http://www.dhis2.org <https://www.dhis2.org/>
>>
>>
>
>
> --
> Best Regards,
>
> *Chathura Widanage,*
> Undergraduate,
> Department of Computer Science and Engineering,
> University of Moratuwa,
> Sri Lanka
>
> <https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
>   <http://facebook.com/chathura.widanage>
> <https://plus.google.com/u/0/109418781686423002025>
> <https://github.com/chathurawidanage>
>



-- 
Best Regards,

*Chathura Widanage,*
Undergraduate,
Department of Computer Science and Engineering,
University of Moratuwa,
Sri Lanka
<https://www.linkedin.com/profile/public-profile-settings?trk=prof-edit-edit-public_profile>
  <http://facebook.com/chathura.widanage>
<https://plus.google.com/u/0/109418781686423002025>
<https://github.com/chathurawidanage>

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