António, OGR comes as a part of GDAL. OGR utilities can be used like GDAL utilities.
First, run ogrinfo on the shapefile with the options "-al" and "-so" to determine the field names in it. Next, use the ogr2ogr utility like this: ogr2ogr -sql "SELECT [field1a AS field1b, field2a AS field2b, field 3a AS field3b] FROM shapefileA" shapefileB.shp shapefileA.shp This command changes the fields field1a, field2a and field3a in the original shapefile, shapefileA.shp, to field1b, field2b and field3b respectively in the new shapefile, shapefile.shp. 2011/10/26 António Rocha <antonio.ro...@deimos.com.pt> > Hi > THanks for the feedback. I'm a bit lost on this. Is there any examples and > tutorials on using sql commands for OGR? I'm sorry but I'm not use to use > Vectorial data and neither OGR (only GDAL) > Thanks > Antonio > Chaitanya kumar CH wrote: > >> António, >> >> The easiest way is to use the -sql option in ogr2ogr [1] and set a new >> name with the AS clause in the SQL statement [2]. >> >> [1]: http://www.gdal.org/ogr2ogr.**html<http://www.gdal.org/ogr2ogr.html> >> [2]: >> http://trac.osgeo.org/gdal/**wiki/rfc28_sqlfunc<http://trac.osgeo.org/gdal/wiki/rfc28_sqlfunc> >> >> 2011/10/26 António Rocha <antonio.ro...@deimos.com.pt <mailto: >> antonio.rocha@deimos.**com.pt <antonio.ro...@deimos.com.pt>>> >> >> >> Greetings >> I have to shage a column name in a Shapefile. I'm not much >> familiar with OGR. How can I do that in OGR? >> THanks >> Best regards, >> Antonio >> >> >> >> __________ Information from ESET NOD32 Antivirus, version of virus >> signature database 6574 (20111025) __________ >> >> The message was checked by ESET NOD32 Antivirus. >> >> http://www.eset.com >> >> >> ______________________________**_________________ >> gdal-dev mailing list >> gdal-dev@lists.osgeo.org >> <mailto:gdal-dev@lists.osgeo.**org<gdal-dev@lists.osgeo.org> >> > >> >> >> http://lists.osgeo.org/**mailman/listinfo/gdal-dev<http://lists.osgeo.org/mailman/listinfo/gdal-dev> >> >> >> >> >> -- >> Best regards, >> Chaitanya kumar CH. >> >> +91-9494447584 >> 17.2416N 80.1426E >> > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 6575 (20111026) __________ > > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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