[postgis-users] Inserting column from another table

[Daniel GIL]

Hi Dylan. It worked. I thought I tried that  yesterday but I probably did
something wrong.

Thank you very much for your answers,

Regards,

Daniel

On Thu, Apr 2, 2015 at 11:00 AM, Dylan Adams <dylan.adams at gmail.com> wrote:

> You'll need to use an UPDATE to accomplish what you're trying to do. It'll
> probably look something like this
>
> UPDATE Table1
> SET geom = Table2.geom
> FROM Table2
> WHERE Table1.FabID = Table2.FabID;
>
> There's more information in the Postgres' documentation about the UPDATE
> statement:
>
> http://www.postgresql.org/docs/9.4/interactive/sql-update.html
>
> Regards,
> dylan
>
> On Thu, Apr 2, 2015 at 9:53 AM, Daniel GIL <dangimar at gmail.com> wrote:
>
>> Hello, I'm learning SQL/PostGIS and I need some help...
>>
>> I have a table (Table1) with different fields (but no geometry field).
>> This table has already 35 rows of values.
>>
>> I imported a second Table to the same database in pgAdmin using
>> pgShapeLoader. This second table has a geom field that I want to add to
>> Table1. The idea is to convert a non-spatial table to spatial
>>
>> I created a geom field in Table 1 using AddColumn:
>>
>>
>> SELECT
>> AddGeometryColumn('UDE_spatial','public','table1','geom',4326,'POINT',2);
>>
>>
>> Now, I'm trying to add the values from geom field in Table 2 to geom
>> field in Table 1:
>>
>> INSERT INTO Table1(geom)
>>
>> SELECT geom
>>
>> FROM Table2;
>>
>>
>> There are 35 rows to add and a common field 'FabID'. My surprise is that
>> instead of adding the values in the rows from 1 to 35, it starts in the row
>> number 36. It seems like you only could use INSERT INTO...SELECT when you
>> want to add fields  to a new table with no values added yet. I don't know
>> how to write the sentence in the way I need. I tried adding...WHERE fabid
>> BETWEEN 1 AND 35.
>>
>>
>> Well, that's probably a very simple question for most of you but I'm
>> getting crazy...lol
>>
>>
>> Thanks
>>
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>>
>
>
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