= Help on Posgis =
 back to Recipes for EDA [wiki:"CookBook Eda"]

Postgis book http://www.postgis.fr/book/print/156#413413413

== I would like to create a postgis table from a postgres table with x y ==

The data are in ''' lambert II étendu '''

{{{
select * from bdmap.spatial_ref_sys where srtext like '%Lambert%' and srtext like '%II%' 
}}}
seems to be 27572
{{{
SELECT AddGeometryColumn('bdmap', 'station','the_geom', 27572,'POINT',2) 
}}}
from Laurent
{{{
UPDATE bdmap
   SET the_geom=PointFromText('POINT(' || st_abcisse || ' ' || st_ordonnee || ')',27572);
}}}

I've got a message from '''Qgis ''' saying that '' I'm not allowed to use a table without int4 primary key or OID ''
{{{
ALTER TABLE bdmap.station SET WITH OIDS;
}}}
Here we add a validity constraint
{{{
ALTER TABLE bdmap.station ADD CONSTRAINT geometry_valid_check CHECK (isvalid(the_geom)); 
}}}

SELECT ST_Transform(the_geom,4269) FROM geotable;