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Thread: Multi table insert

Multi table insert

From
norman
Date:
Hello,
I have created a multi-table insert script in python, the problem is that this worked fine on an older PostgreSQL db (7.2) but now I get an

Error, psycopg2.ProgrammingError: missing FROM-clause entry for table "business_name_business_name_seq"

Here is part of the script

It is a Z SQL Method for Zope.

##########


INSERT INTO business_name (business_name, business_url, business_type_id)
  values (<dtml-sqlvar business_name type="string" >, <dtml-sqlvar business_url type="string">, <dtml-sqlvar business_type_list_id type="int">);

<dtml-var sql_delimiter>

INSERT INTO business_address (street_name, town, city, postcode, county_id, business_name_id) values
(<dtml-sqlvar street_name type="string">,
<dtml-sqlvar town type="string">,
<dtml-sqlvar city type="string">,
<dtml-sqlvar postcode type="string">,
<dtml-sqlvar county_list type="int">,
business_name_business_name_seq.last_value);

#########

Here I want to take the last_value for the business_name_id that was generated in the first insert and put it as the related item in the next INSERT table.

Is there a better way to do this? I have 4 tables all related and one input form.

Many thanks

Norman

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Re: Multi table insert

From
"A. Kretschmer"
Date:
am  Fri, dem 27.10.2006, um 13:07:34 +0100 mailte norman folgendes:
> Hello,
> I have created a multi-table insert script in python, the problem is that this
> worked fine on an older PostgreSQL db (7.2) but now I get an
>
> Error, psycopg2.ProgrammingError: missing FROM-clause entry for table
> "business_name_business_name_seq"
>
> Here is part of the script
>
> It is a Z SQL Method for Zope.

I'm not familar with Zope, but the error is clear, this is a new
behavior since 8.x.



As a fast work around you can set add_missing_from to on in your
postgresql.conf.


More infos:

http://developer.postgresql.org/pgdocs/postgres/runtime-config-compatible.html


Andreas
--
Andreas Kretschmer
Kontakt:  Heynitz: 035242/47215,   D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID:   0x3FFF606C, privat 0x7F4584DA   http://wwwkeys.de.pgp.net

Re: Multi table insert

From
"George Pavlov"
Date:
can you replace:

  business_name_business_name_seq.last_value

with:

  (select last_value from business_name_business_name_seq)

or, more defensively coded:

  (select max(last_value) from business_name_business_name_seq)

i am assuming business_name_business_name_seq is some kind of one-row
table that is always guaranteed (how?) to have one row and sort of fakes
a sequence (which brings the question of why not use a true sequence?)


> -----Original Message-----
> From: pgsql-novice-owner@postgresql.org
> [mailto:pgsql-novice-owner@postgresql.org] On Behalf Of norman
> Sent: Friday, October 27, 2006 5:08 AM
> To: pgsql-novice@postgresql.org
> Subject: [NOVICE] Multi table insert
>
> Hello,
> I have created a multi-table insert script in python, the
> problem is that this worked fine on an older PostgreSQL db
> (7.2) but now I get an
>
> Error, psycopg2.ProgrammingError: missing FROM-clause entry
> for table "business_name_business_name_seq"
>
> Here is part of the script
>
> It is a Z SQL Method for Zope.
>
> ##########
>
>
> INSERT INTO business_name (business_name, business_url,
> business_type_id)
>   values (<dtml-sqlvar business_name type="string" >,
> <dtml-sqlvar business_url type="string">, <dtml-sqlvar
> business_type_list_id type="int">);
>
> <dtml-var sql_delimiter>
>
> INSERT INTO business_address (street_name, town, city,
> postcode, county_id, business_name_id) values
> (<dtml-sqlvar street_name type="string">,
> <dtml-sqlvar town type="string">,
> <dtml-sqlvar city type="string">,
> <dtml-sqlvar postcode type="string">,
> <dtml-sqlvar county_list type="int">,
> business_name_business_name_seq.last_value);
>
> #########
>
> Here I want to take the last_value for the business_name_id
> that was generated in the first insert and put it as the
> related item in the next INSERT table.
>
> Is there a better way to do this? I have 4 tables all related
> and one input form.
>
> Many thanks
>
> Norman
>

Re: Multi table insert

From
norman
Date:
Hi and thanks for your replies.
The fix was as per Andreas' post and this works now.

Although, I would like to improve the code and make it better.

The ' business_name_business_name_seq' is just a sequence type for the table business_name where business_name table is related like:

business_name -> business_address by the business_name_id

as the submit form is just one  form, i inserted the values in order so I needed the fk_business_name_id to be taken from the previous insert and so on...

perhaps there is better way to do this.

cheers

norman


George Pavlov <gpavlov@mynewplace.com> wrote:
can you replace:

business_name_business_name_seq.last_value

with:

(select last_value from business_name_business_name_seq)

or, more defensively coded:

(select max(last_value) from business_name_business_name_seq)

i am assuming business_name_business_name_seq is some kind of one-row
table that is always guaranteed (how?) to have one row and sort of fakes
a sequence (which brings the question of why not use a true sequence?)


> -----Original Message-----
> From: pgsql-novice-owner@postgresql.org
> [mailto:pgsql-novice-owner@postgresql.org] On Behalf Of norman
> Sent: Friday, October 27, 2006 5:08 AM
> To: pgsql-novice@postgresql.org
> Subject: [NOVICE] Multi table insert
>
> Hello,
> I have created a multi-table insert script in python, the
> problem is that this worked fine on an older PostgreSQL db
> (7.2) but now I get an
>
> Error, psycopg2.ProgrammingError: missing FROM-clause entry
> for table "business_name_business_name_seq"
>
> Here is part of the script
>
> It is a Z SQL Method for Zope.
>
> ##########
>
>
> INSERT INTO business_name (business_name, business_url,
> business_type_id)
> values (,
> ,
> business_type_list_id type="int">);
>
>
>
> INSERT INTO business_address (street_name, town, city,
> postcode, county_id, business_name_id) values
> (,
> ,
> ,
> ,
> ,
> business_name_business_name_seq.last_value);
>
> #########
>
> Here I want to take the last_value for the business_name_id
> that was generated in the first insert and put it as the
> related item in the next INSERT table.
>
> Is there a better way to do this? I have 4 tables all related
> and one input form.
>
> Many thanks
>
> Norman
>

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