Re: COPY tablename FROM and null values

On 3/22/06, Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com> wrote:
>
> O ivan marchesini έγραψε στις Mar 22, 2006 :
>
> > Dear users,
> > I'm working on a Postgres 7.4 server
> >
> > I have a .txt file, containing some tabular data, where data are
> > delimited by TABs.
> > there are 3 columns:
> >
> > column1 int4, column2 float8, column3 float8
> >
> > the problem is that column3 contains also null values (i.e. sometimes is
> > empty)
> >
> > so when I try to use COPY tablename FROM 'filename.txt' I obtain an
> > error
> >
> > I have tried also using " WITH NULL AS ' ' " but without good results...
> >
> > can someone explain me how to solve this problem???
>
> batch edit your file (with sed,awk,perl,C,java,...) and build your
> explicit INSERT statements in some version of your file.

or Replace the empty spaces in the file with some other value (0.0)

>
> > thank you very much
> >
> > Ivan
> >
> >
> >
> >
> >
>
> --
> -Achilleus
>
>
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