Thread: how to read bytea contents by using pgsql scripts

how to read bytea contents by using pgsql scripts

From
"vijaykumar M"
Date:
Hi All, Is their any way to read the bytea contents by using pgsql script.

Thanks & regards
Vijay

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Re: how to read bytea contents by using pgsql scripts

From
Christoph Haller
Date:
> 
> Hi All,
>   Is their any way to read the bytea contents by using pgsql script.
> 
> Thanks & regards
> Vijay
> 
> _________________________________________________________________
> 
Not sure if that's what you are asking for but you can do e.g. 

$PGSQLD/bin/psql -d <your-dbase-name> -f ./query2.txt >  ./query2.res 

./query2.txt has something like 
select * from bytea_tab ; 

then you'll find all non-printables in  ./query2.res 
properly escaped as octets as shown in Data Types - Binary Strings. 

HTH 

Regards, Christoph 



Re: how to read bytea contents by using pgsql scripts

From
"vijaykumar M"
Date:
Hi Christoph,   Thanks for ur reply.   Let me explain my problem..., In one of my table.. we used bytea 
datatype for one field.. actaully i want  to  know the original stored 
contents (not in byte's) from that field by using pgsql scripts.

Thanks in advance..

With regards
Vijay






>From: Christoph Haller <ch@rodos.fzk.de>
>To: m_vijaykumar@hotmail.com (vijaykumar M)
>CC: pgsql-sql@postgresql.org
>Subject: Re: [SQL] how to read bytea contents by using pgsql scripts
>Date: Mon, 24 Nov 2003 11:26:02 MET
>
> >
> > Hi All,
> >   Is their any way to read the bytea contents by using pgsql script.
> >
> > Thanks & regards
> > Vijay
> >
> > _________________________________________________________________
> >
>Not sure if that's what you are asking for but you can do e.g.
>
>$PGSQLD/bin/psql -d <your-dbase-name> -f ./query2.txt >  ./query2.res
>
>./query2.txt has something like
>select * from bytea_tab ;
>
>then you'll find all non-printables in  ./query2.res
>properly escaped as octets as shown in Data Types - Binary Strings.
>
>HTH
>
>Regards, Christoph
>
>
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Re: how to read bytea contents by using pgsql scripts

From
Christoph Haller
Date:
> 
> Hi Christoph,
>     Thanks for ur reply.
>     Let me explain my problem..., In one of my table.. we used bytea 
> datatype for one field.. actaully i want  to  know the original stored 
> contents (not in byte's) from that field by using pgsql scripts.
> 
> Thanks in advance..
> 
> With regards
> Vijay
> 
> 
Sorry, Vijay, but I don't get it. 
What do you mean by 
"the original stored contents (not in byte's)" ? 

Regards, Christoph 



Re: how to read bytea contents by using pgsql scripts

From
"vijaykumar M"
Date:
Hi Christoph,    Yes,  U catched my problem, i want to know the original stored contents 
(not in byte form).

With thanks and regards
Vijay


>From: Christoph Haller <ch@rodos.fzk.de>
>To: m_vijaykumar@hotmail.com (vijaykumar M)
>CC: pgsql-sql@postgresql.org
>Subject: Re: [SQL] how to read bytea contents by using pgsql scripts
>Date: Mon, 24 Nov 2003 16:12:56 MET
>
> >
> > Hi Christoph,
> >     Thanks for ur reply.
> >     Let me explain my problem..., In one of my table.. we used bytea
> > datatype for one field.. actaully i want  to  know the original stored
> > contents (not in byte's) from that field by using pgsql scripts.
> >
> > Thanks in advance..
> >
> > With regards
> > Vijay
> >
> >
>Sorry, Vijay, but I don't get it.
>What do you mean by
>"the original stored contents (not in byte's)" ?
>
>Regards, Christoph
>
>
>---------------------------(end of broadcast)---------------------------
>TIP 8: explain analyze is your friend

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