On Wed, 15 Dec 2004 06:38:22 -0800 (PST), sarlav kumar
<sarlavk@no-spam> wrote:
> Hi All,
>
> I would like to write the output of the \d command on all tables in a
> database to an output file. There are more than 200 tables in the database.
> I am aware of \o command to write the output to a file. But, it will be
> tough to do the \d for each table manually and write the output to a file.
> Is there a command/ way in which I can achieve this without having to do it
> for each table?
> Any help in this regard would be really appreciated.
>
> Thanks,
> Saranya
>
>
Try something like:
psql -c "\d *" >listing.txt
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=2E..and on Wed, Dec 15, 2004 at 06:38:22AM -0800, sarlav kumar used the ke=
yboard:
> Hi All,
> =20
> I would like to write the output of the \d command on all tables in a dat=
abase to an output file. There are more than 200 tables in the database. I =
am aware of \o command to write the output to a file. But, it will be tough=
to do the \d for each table manually and write the output to a file. Is th=
ere a command/ way in which I can achieve this without having to do it for =
each table?
> Any help in this regard would be really appreciated.
> =20
Hello Sarlav.
You don't say which platform you're doing this on. If it's Windows, someone
else will have to advise you; if it's a UNIX-like platform though, the
following simple shell script should be helpful in achieving what you want:
---CUT-HERE---
#!/bin/bash
if [ -z "$1" ]; then
echo "Please specify a database to query."
exit 1
fi
DATABASE=3D$1
MYTABLES=3D"`echo '\t\a\dt' | psql -q ${DATABASE} | cut -f 2 -d '|'`"
for table in ${MYTABLES}; do
echo '\d '${table}
done | psql ${DATABASE}
---CUT-HERE---
You can store this script into a file called, for example, describe.sh and
invoke it like so:
$ ./describe.sh mydatabase > description.txt
It should then do what you want.
Should you have additional arguments to specify to psql, such as a host,
a username, a password and so on, it is easy to modify the script to do
that. Just supply those arguments in places where the "psql" command is
used.
Hope this helped,
--=20
Grega Bremec
gregab at p0f dot net
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On Wed, 2004-12-15 at 11:50 -0500, Tom Lane wrote:
> Geoffrey <esoteric@no-spam> writes:
> > sarlav kumar wrote:
> >> I would like to write the output of the \d command on all tables in a
> >> database to an output file.
>
> > What is the OS? On any UNIX variant you can do:
> > echo '\d' | psql > outputfile
>
> Or use \o:
>
> regression=# \o zzz1
> regression=# \d
or:
=# \d *
to get all tables as th OP wanted
> regression=# \o
gnari
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