dhis2-devs team mailing list archive

[Knut Staring <knutst@xxxxxxxxx>]

Hi Andrew,

There seems to be some confusion: You need to "replace" in the SQL statement
before you run it. In order to find the right ID that should form part of
the DELETE statement, you need to look at the dataelement table in your
database, and e.g. run something like
"SELECT dataelementid FROM dataelement WHERE name= 'The name of your
dataelement here'.

Is your DHIS2 available online?

Knut

On Mon, Sep 12, 2011 at 5:04 PM, Muhire Andrew <muhireandrew@xxxxxxxxx>wrote:

>  Thanks for the quick help,
> i have successfully used the select and delete steps
> (in datavalues and datavalue_audit)
>  but using replace <id> is not working on my side may be am not using it
> well? please update me again (only replace syntax). i have deleted data from
> my data element x and next step was to use replace but am getting syntax
> error! and if i check my data in data entry form i find no data and if i
> delete the data element in an interface next time i get error message for
> the unreplaced id when i open the form.
> waiting for your help dear team!
>
>
>
>
>
> ------------------------------
>
>
> *Muhire Andrew
> *
> *HMIS/Ministry of Health*
> *andrew.muhire@xxxxxxxxxx*
> *God is my provider.*
>
>
> ------------------------------
> *From:* Jason Pickering <jason.p.pickering@xxxxxxxxx>
> *To:* Muhire Andrew <muhireandrew@xxxxxxxxx>
> *Cc:* Knut Staring <knutst@xxxxxxxxx>; Lars Helge Øverland <
> larshelge@xxxxxxxxx>; "dhis2-users@xxxxxxxxxxxxxxxxxxx" <
> dhis2-users@xxxxxxxxxxxxxxxxxxx>; "dhis2-devs@xxxxxxxxxxxxxxxxxxx" <
> dhis2-devs@xxxxxxxxxxxxxxxxxxx>
> *Sent:* Monday, September 12, 2011 4:13 PM
> *Subject:* Re: [Dhis2-devs] Dear Dhis2 users how can i delete?
>
> It is best practice in all cases to ensure to you make a backup of your
> database. Even with SELECT and DELETE, you may unknowingly make a typing
> mistake. Anytime you start messing around with the database directly, ensure
> you first make a backup, so that you can easily restore the database in case
> you mess up something unintentionally.
>
> Another trick is to use a "SELECT INTO " statement, to put all of the data
> you are about to delete into a separate table, and then perform the delete
> operation. This way, it is relatively easy to see what you have deleted and
> restore it once again, without reverting to a complete backup restore.
>
> Regards,
> Jason
>
>
> 2011/9/12 Muhire Andrew <muhireandrew@xxxxxxxxx>
>
> Thank you all,
> Great Knut its rilly good to select first and then delete because it can
> cause problems in case i delete  the needed data.
>
>
>
>
> ------------------------------
>
>
> *Muhire Andrew
> *
> *HMIS/Ministry of Health*
> *andrew.muhire@xxxxxxxxxx*
> *God is my provider.*
>
>
> ------------------------------
> *From:* Knut Staring <knutst@xxxxxxxxx>
> *To:* Lars Helge Øverland <larshelge@xxxxxxxxx>
> *Cc:* Muhire Andrew <muhireandrew@xxxxxxxxx>;
> dhis2-users@xxxxxxxxxxxxxxxxxxx; dhis2-devs@xxxxxxxxxxxxxxxxxxx
> *Sent:* Monday, September 12, 2011 3:56 PM
> *Subject:* Re: [Dhis2-devs] Dear Dhis2 users how can i delete?
>
> As a rule of thumb, it is usually wise to do a SELECT before a DELETE, so
> that you are 100% sure you are not deleting data you really need.
>
> In this case:
>
> select * from datavalue_audit where dataelementid=<id>;
> select * from datavalue where dataelementid=<id>;
>
> Knut
>
> 2011/9/12 Lars Helge Øverland <larshelge@xxxxxxxxx>
>
> Hi Andrew,
>
> you need to remove the data with SQL in the database. Run:
>
> delete from datavalue_audit where dataelementid=<id>;
> delete from datavalue where dataelementid=<id>;
>
> and replace <id> with the dataelementid of the one you want to remove.
>
> You can then go ahead and delete the data element in the user interface.
>
>
>
> Lars
>
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>
> --
> Knut Staring
> Informatics, U. of Oslo
> http://hisp.uio.no
> +4791880522
>
>
>
>
> _______________________________________________
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>


-- 
Knut Staring
Informatics, U. of Oslo
http://hisp.uio.no
+4791880522