[postgis-users] loading many similar shapefiles

[Martin Davis]

You can easily do this with JEQL.

http://tsusiatsoftware.net/jeql/main.html

A script to read a shapefile and load it into PostGIS would look like 
the following.  You can choose whatever columns you want to load by 
giving their names.

====================================================
ShapefileReader tbl file: "data.shp";

cities = SELECT CITY_ID, NAME, MAPLABEL, SHADE, Shape_area, Shape_len, 
Geom.toWKT(GEOMETRY) AS geom FROM tbl;

DbWriter cities
    class: "org.postgresql.Driver"
    url: "jdbc:postgresql://host:1111/db-instance"
    user: "user"
    password: "pwd"
    sql: $"INSERT INTO Cities ( 
CITY_ID,NAME,MAPLABEL,SHADE,Shape_area,Shape_len,geom ) VALUES 
(?,?,?,?,?,?,ST_GeometryFromText(?,2927))"
    batchSize: 1000
    commitSize: 1000;
====================================================

P Kishor wrote:
> I have many shapefiles that are conceptually identical in structure,
> except a couple of columns in each file are named differently. These
> columns are unimportant.
>
> How can I load all these files in the same table without the offending columns?
>
> # generate the create table and insert commands
> shp2pgsql -s 4269 -c file1 table > load.sql
>
> # generate the insert commands for subsequent files
> shp2pgsql -s 4269 -a file2 table >> load.sql
> shp2pgsql -s 4269 -a file3 table >> load.sql
> ..
>
> The above commands generate INSERT statements like so --
>
> INSERT INTO "table" (
>   "area",
>   "perimeter",
>   "file1_",
>   "file1_i",
>    the_geom
> ) VALUES (
>   '2.29080994500086E-04',
>   '6.34477469815224E-02',
>  '0106000020AD100000010000000103000020AD100000010000000D000000A4552DE928EA55C0C6F99B5088443E404582A966D6E955C050C8CEDBD8443E40187D0569C6E955C02B508BC1C3443E403DEFC682C2E955C0BB4560AC6F443E40EB8D5A61FAE955C0A6D24F38BB413E402907B30930EA55C0503750E09D403E40C28A53AD85EA55C0A8716F7EC3403E403D997FF44DEB55C058FFE7305F423E402C4833164DEB55C00F4240BE84423E40DAAD65321CEB55C0AFCF9CF529433E40D48041D2A7EA55C046274BADF7433E40FB58C16F43EA55C045F295404A443E40A4552DE928EA55C0C6F99B5088443E40'
> );
>
>
> I don't want file1_ and file1_i and their corresponding values. Is
> there a way to specify which columns to load?
>
>
>
>   

-- 
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022