Question

How to check the database name of postgres in my linux machine

Asked by: jaisonshereen

How to check the database name of postgres in my linux machine

i need to take the backup for that i have to give dabase name
i only know username and password ...

this is the command :
pg_dump -Ft -b mydb > db.tar

one more doubt is ..

which one i need to use db.tar
or
db.tz

or
db.out

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Asked On
2008-06-17 at 14:34:00ID23493362
Topics

PostgreSQL Database

,

Databases Miscellaneous

,

Linux Administration

Participating Experts
1
Points
500
Comments
9

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Answers

 

by: sanjoozPosted on 2008-06-17 at 15:45:43ID: 21808103

Depends on what you want.

If you want the output to be a tar file then use
pg_dump -Ft -b mydb > db.tar

If you want the ordinary output use .out file

http://www.postgresql.org/docs/7.4/static/app-pgdump.html

 

by: jaisonshereenPosted on 2008-06-17 at 16:06:02ID: 21808190

Ok thanks !

how to find out my db name? ... i have already installed database in my server..how to find the dbname?

 

by: sanjoozPosted on 2008-06-17 at 16:26:29ID: 21808279

Well the database name is the one you created. If you do not know all the databases in postgres, login locally to postgres by issuing command psql on command line.

then at the postgres prompt do a \l (that is a backward slash and el). It will show you a list of databases.

 

by: jaisonshereenPosted on 2008-06-17 at 16:54:11ID: 21808505

what is the command to login to postgres without using database name?

 

by: sanjoozPosted on 2008-06-17 at 17:35:16ID: 21808738

login locally to postgres by issuing command <B> psql </B>on command line.

psql

 

by: jaisonshereenPosted on 2008-06-17 at 17:37:00ID: 21808749

its taking root as database and giving error :

 psql
psql: FATAL:  database "root" does not exist

                                              
1:
2:

Select allOpen in new window

 

by: sanjoozPosted on 2008-06-17 at 18:29:37ID: 21809143

That is because you are logged in to console as root. Log in as a normal user and then use psql command

 

by: jaisonshereenPosted on 2008-06-18 at 00:16:54ID: 21810716

i didnt have any other  user credentials

 

by: sanjoozPosted on 2008-06-18 at 05:26:54ID: 21812070

When you installed postgres, you must have created postgres user. Look in your /etc/passwd, or you could run this command

cat /etc/passwd | cut -d":" -f1

then login as as postgres user : su postgres
and then :  psql

20120131-EE-VQP-002

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