I got a lot information from google that to export database from postgresql using sqlAdmin software, but couldn't found about how to use Postgres 15 terminal to export the database.
I try access into my psql environment as psql in the terminal.
Below command that was found from other site, but it didn't work for inside terminal(psql) or terminal(exist psql) .
$ pg_dump -U USERNAME DBNAME > dbexport.pgsq
Related
i have a dump file on drive z (network drive)
im opening the psql from PgAdmin4
this is the command that im writeing:
psql -U postgres -d postgres -f Z:\DB_BU\md_20220729.sql
and this is the error that im getting:
Invalid command \DB_BU. Try \? for help.
when im doing this:
psql -U postgres -d postgres -f i\ Z:\DB_BU\md_20220729.sql
Invalid command \DB_BU. Try ? for help.
and when im doing this:
psql -U postgres -d postgres -f "Z:\DB_BU\md_20220729.sql"
im not getting any error but also its not restoring the file. how can i restor the file?
You're trying to call psql from within psql or PGAdmin. Since
psql is a standalone program, not an SQL command you can run in PGAdmin SQL window or psql's own, internal meta-command you're getting the error
Invalid command \DB_BU. Try \? for help
indicating that there was an attempt to interpret your entire command as a SQL query or an internal command and that this attempt failed.
You can open "psql tool" from within PGAdmin but your command won't work there either because it's trying to call psql itself, with some command-line options, which you cannot do when you're already inside an interactive psql session. The command
psql -U postgres -d postgres -f Z:\DB_BU\md_20220729.sql
can be used outside psql and PGAdmin, in your terminal, like zsh on Mac, sh/bash on Linux, cmd or PowerShell on Windows, where psql is installed and visible, along with your network path.
If you're able to open the psql tool window in PGAdmin, you can instead try and use an internal psql \i meta-command which is basically the same thing as the -f command-line option, but meant for use inside the psql session:
\i "Z:\DB_BU\md_20220729.sql"
As someone who is very new to working with databases/SQL I'm having trouble setting up a dump from the database Qscored, which can be found at https://zenodo.org/record/4468361#.YgTTZ-7ML0p, the first dump (ab) is the one I've worked with. The downloaded file is of type POSIX tar archive. According to the README file, these are the commands to be run in a terminal window.
cat qscored_dump_25Jan2021ab > qscored_dump_25Jan2021.tar
psql -U postgres
When in a PostGreSQL user run
CREATE DATABASE qscoreddb WITH TEMPLATE=template0 ENCODING='UTF-8';
CREATE USER dbwala WITH PASSWORD 'password';
GRANT ALL PRIVILEGES ON DATABASE qscoreddb TO dbwala;
Then, in a new terminal window I run pg_restore according to
pg_restore -d qscoreddb -U postgres \path\to\qscoreddb_dump_Jan252021.tar
I then get the error message
pg_restore: error: input file does not appear to be a valid archive
Does anyone know how I might be able to solve this problem or does it mean there are problems in the original file?
I'm using PostGreSQL 14 with a Mac Monterey 12.2.
I have downloaded YELP's sql file and tried to import the sql to my local Postgresql.
I am running postgres on Windows 10 and using Cygwin to execute command that I have found on Google. (it took me forever to use Cygwin instead of windows psql shell)
anyhow, Yelp gives data schema in sql and also data in sql. You may find them a link attached below
https://www.yelp.com/dataset/download
so, basically what I thought was creating an empty table with YELP's schema
the, copy all YELP's data into that table.
pg_dump -h localhost -p 5433 -U postgres -s mydb < D:/YELP/yelp_schema.sql
pg_dump -h localhost -p 5433 -U postgres -d mydb < D:/YELP/yelp_sql-2.tar
and I am checking my database transaction and it doesn't change nothing and i do not see the table.
this is what i see on Cygwin terminal
enter image description here
and nothing on my postgresql database
Please let me know what I have missed.
Thanks a lot
your link asks for email to download. I would suspect yelp to be not transparent for it. So I did not check if they have any advise on their data sets... Anyway you use pg_dump to dump the data. to import the resulting file use psql for plain sql files and pg_restore for custom format ones...
Eg:
psql -h localhost -p 5433 -U postgres -f D:/YELP/yelp_schema.sql
pg_restore -h localhost -p 5433 -U postgres -s worldmap -Ft D:/YELP/yelp_schema.sql
https://www.postgresql.org/docs/current/static/app-pgdump.html
pg_dump — extract a PostgreSQL database into a script file or other
archive file
I have Postgres DB on machine with Windows OS, also I have virtual machine with Linux (Ubuntu). I need to move data from Windows to Linux.
Thanks in advance!
you can use below query to restore a database from one server to another
pg_dump -C -h SourceServer -U SourceUser SourceDB | psql -h TargetHost -U TargetUser TargetDB
Password can be used from pgpass.conf
I had to transfer a DB from my local machine ( Windows 11) to an Linux (Ubuntu Bionic) server, so I did the following:
Dumped my DB into a backup file with extension .sql by using the following command
Open the terminal
Go to the folder where postgresql is installed in my case it was
C:\Program Files\PostgreSQL\14\bin
In the terminal write
cd C:\Program Files\PostgreSQL\14\bin
Type the following command, change the <db_name> and <folder_name> as required and press enter.
pg_dump.exe -U postgres -d <db_name> -f D:\<folder_name>\<db_name>.sql
Enter your password and it will create the backup in the mentioned folder.
Connect to the Linux Server and copy the <db_name>.sql file
scp D:\<folder_name>\<db_name>.sql username#ip_address:/<destination_folder>
Install postgresql on the server
sudo apt-get install postgresql postgresql-contrib
Check the status
service postgresql status
Create DB
sudo su postgres
psql -U postgres -c “create database <db_name>”
Import the data from the dump file to this new DB.
psql db_name < /path/db_name.sql
I am setting up a website and am having some trouble restoring a database .dump file. I am using centos7, selinux, postgresql 9.4, and apache2.
This is my pg_hba.conf file.
This is the command I am trying to move the dump:
psql --single-transaction -U postgres db_name < dump_location
When I do this, I get the error:
Permission denied.
Am I missing something or is there someway I should alter my settings? Let me know if you need more information.
Thank you!
The operating system user you are running your shell as does not have permission to read the path dump_location.
Note that this is not necessarily the operating system user you run psql as. In a statement like:
sudo -u postgres psql mydb < /some/path
then /some/path is read as the current user, before sudo, not as user postgres, because it's the shell that performs the input redirection, not psql.
If, in the above example, you wanted to read the file as user postgres you would:
sudo -u postgres psql -f /some/path mydb
That instructs psql to open and read /some/path when it's started.
Just make sure that you are using correct database user and you have at least read permission on the dump file.
"psql -d -U postgres -f "
will work.