[gdal-dev] ogr2ogr SQL Date Calculation

[Michael Shishcu]

Hi Robert,

there is a Date command for windows commandline
http://ss64.com/nt/date.html

hope this helps

regards,
michael

On Mon, Jul 11, 2011 at 6:11 PM, Langford, Robert <
Robert.Langford at salford.gov.uk> wrote:

>  All,
>
> I am trying to use ogr2ogr as a scheduled command line task to run weekly
> to convert a .SHP file to a .TAB file whilst filtering the data based on a
> date field.  I would like to only convert records that have a date from the
> last 30 days.
>
> Therefore If the task ran today (11/07/2011) the below line would return
> the required data:
>
> ogr2ogr -f "MapInfo File" -sql "select * from DCPOLY where
> DATE_CREA1>'2011/06/11'" D:\Data\Plan_Apps.tab D:\Data\DCPOLY.shp
>
> Obviously if the task ran tomorrow the date would have to be changed to
> '2011/06/12'.  So I need the field SQL to be something like:
>
> DATE_CREA1> Todays_Date - 30
>
> Does anyone know of a way to automate this using something like; GetDate(),
> Now(), sysdate, Date /t, etc?  Any help would be greatly appreciated.
>
> Many thanks,
>
> Rob
>
>
> *Robert Langford*
> *Systems Developer (GIS)*
> *Corporate Applications Team*
> *Salford City Council*
>
> Tel:      0161 793 2492
> Email:  *robert.langford at salford.gov.uk* <robert.langford at salford.gov.uk>
> Web:    *www.salford.gov.uk* <http://www.salford.gov.uk/>
>
> Salford Civic Centre,
> Chorley Road, Swinton, M27 5DA
>
>
>
>
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