Re: csv import error

Eugenio Trumpy <frippe12573@xxxxxxxxxxx> · Tue, 23 Sep 2014 15:53:26 +0200

Thank you Farjad,

following your suggestion I'm now able to import my csv and the serial 
automatically is inserted in the new records.

Bye

E.

From: farjad.farid@xxxxxxxxxxxxxxxxx
To: frippe12573@xxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx
Subject: RE:  csv import error
Date: Tue, 23 Sep 2014 13:38:27 +0100

Hi Eugenio, 

How you got about resolving this depends on your project, the size of data. 

For a simple case, which this seems to be. Simply  don’t insert the serial column. E.g. remove both name of the column and its corresponding value in the insert statement. 
Postgresql will insert these automatically. 

If the size of the data is larger or there are dependencies on the OID value elsewhere in the DB then recreated the target table but without making the column ‘serial’. But actually creating all columns.  And inserting all column values. 

Once the operation is done. Then manually create serial sequencer and attach it to the OID column. 

The disadvantage of this is in error detection and correction of the process. 
If there are errors in CSV files ,which often are as sometimes they are edited manually, then it will be more time consuming to correct. Depending on the size of data in CSV file. 

Hope this helps. 

Best Regards

Farjad Farid

From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Eugenio Trumpy
Sent: 23 September 2014 13:14
To: farjad.farid@xxxxxxxxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx
Subject: Re:  csv import error

Hi,

I adjusted the csv, changing the semi-column with column and inserting the quote for character.
Now it seems to be better but I got another error. This last is due to the fact that oid column in my
postgresql table is a serial and I did not filled it in csv because I was thinking that would have been 
filled-in automatically during the data import.

What do you suggest on this regard? How can I solve?

E.
From: farjad.farid@xxxxxxxxxxxxxxxxx
To: frippe12573@xxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx
Subject: RE:  csv import error
Date: Tue, 23 Sep 2014 12:03:15 +0100

Hi, 

Quotation marks should be around both the name of each and every column and their values. 

As the columns names are all lower case. You may wish to remove all quotation marks which is much easier. 
But character value needs quotation mark.

Also replace the semi-column as column separation character with commas for sql insert statement. 
What has happened here is that the values from CSV are directly  inserted into sql. It needs a little bit of extra work.  
Hope this helps. 

Best Regards

Farjad Farid

From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Eugenio Trumpy
Sent: 23 September 2014 11:26
To: pgsql-general@xxxxxxxxxxxxxx
Subject:  csv import error

Hello,

I'm trying to import data using a csv file,
but I got an error:

ERROR:  column "key;daprof;aprof;tipo;valore;note;oid;unit_mis" of relation "assorb" does not exist
LINE 1: INSERT INTO "info_pozzi_hydrocarbon"."assorb" ("key;daprof;a...
                                                       ^
In statement:

INSERT INTO "info_pozzi_hydrocarbon"."assorb" ("key;daprof;aprof;tipo;valore;note;oid;unit_mis") VALUES ('1001334;19.1;21;A;6;;;11')

My sql statement for the table that I would like to populate is:

-- Table: info_pozzi_hydrocarbon.assorb

-- DROP TABLE info_pozzi_hydrocarbon.assorb;

CREATE TABLE info_pozzi_hydrocarbon.assorb
(
  key integer,
  daprof double precision,
  aprof double precision,
  tipo character(1),
  valore double precision,
  note character(254),
  oid serial NOT NULL,
  unit_mis smallint,
  CONSTRAINT assorb_pk PRIMARY KEY (oid),
  CONSTRAINT assorb_fk FOREIGN KEY (key)
      REFERENCES pozzi (key) MATCH SIMPLE
      ON UPDATE CASCADE ON DELETE CASCADE,
  CONSTRAINT unit_m_fk FOREIGN KEY (unit_mis)
      REFERENCES info_cod.unita (unita) MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION
)
WITH (
  OIDS=FALSE
);

the csv file is like the following (it is only a part):

key;daprof;aprof;tipo;valore;note;oid;unit_mis
1001334;19.1;21;A;6;;;11
1001334;93.5;94;A;30;;;11
1001334;94;115;A;20;;;11
1001334;154.5;255;A;644;;;11
1001334;273;282;A;4;;;11
1001334;298;309;A;7;;;11
1001334;432;1224;P;1850;;;11
4277001;121;901;A;397;ALLARGAMENTO FORO;;11
4277001;121;901;A;96;PERFORAZIONE;;11

The filed order it is the same and also the decimal separator is set as dot. I set also the delimiter for fields.
I don't understand what was the problem. 

Can somebody help me?

Eugenio