PostgresSQL unable to read csv files on my desktop - postgresql

I am trying to import a CSV file into postgresSQL, however, I keep getting the error that no such file exists or directory.
this is the line of code I execute copy mu_data from
copy mu_data from 'users/mysurname/Desktop/FILE.CSV' DELIMITER ',' CSV
HEADER;
Can anyone suggest how to fix this?

copy is a command run on the server side. So unless your Postgres server happens to be on your localhost, the file very likely doesn't exist from the view of the server.
So one solution is you to transfer the file to the servers filesystem somehow. Or, if you're using the psql command line tool (or at least can use it for this task), you can use the \copy command there.

Related

Postgresql copy command not finding file

when running:
~/fidelity/releases/20220907033831$ ls -a
.
..
.browserslistrc
221005_users_all.csv
_private
the presence of a file is confirmed.
However, when launching a postgresql command
psql fidelity_development
COPY users (id,migrated_id,[...]) FROM '~/fidelity/releases/20220907033831/221005_users_all.csv' DELIMITER ';' CSV HEADER;
The response is unexpected:
ERROR: could not open file "~/fidelity/releases/20220907033831/221005_users_all.csv" for reading: No such file or directory
What am I missing to determine why postgresql cannot see this file?
note this directory was also simlinked as fidelity/current and the same result was obtained when referring to that directory for the file, whereas bash sees it.
Use \COPY command as this one is client based and handles the local path correctly.
While COPY is server based and this could cause issues finding your file.

Copy file from Remote Server using PgAdmin4

I am trying to copy a file from my Office Remote server as CSV output on my local machine (windows). I cannot use the export/import dialog. It shows the following error
Utility file not found. Please correct the Binary Path in the Preferences dialog
The same command works fine for local server files meaning I have already edited the binary path in the Configuration setting.
The COPY command gives the following error
ERROR: relative path not allowed for COPY to file SQL state: 42602
\Copy doesn't work either.
Can anyone suggest me a solution for this?
Good afternoon,
You can generate the CSV file like this:
copy(select * from schema.table) TO '/tmp/file.csv' WITH CSV DELIMITER '|';

Export to CSV from postgresql

I want to export a postgresql table to a csv file.
I have tried two ways, however both are unsuccessful for different reasons.
In the first case, you can see what I run and what I get bellow:
COPY demand.das_april18_pathprocess TO '/home/katerina/das_april18_pathprocess.csv' DELIMITER ',' CSV HEADER;
No such file or directory
SQL state: 58P01
I need to mention that in the location /home/katerina/ I have created an empty file named das_april18_pathprocess.csv, for which I modified the Permission settings to allow Read and Write.
In my second try, the query is executed without any errors but I cannot see the csv file. The command that I run is the following:
COPY demand.das_april18_pathprocess TO '/tmp/das_april18_pathprocess.csv' DELIMITER ',' CSV HEADER;
In the /tmp directory there is no cvs file.
Any advice on how to export the table to csv file with any way is really appreciated!
Ah, you run into a common problem -- you're creating a file on the server's filesystem, not your local filesystem. That can be a pain.
You can, however, COPY TO STDOUT, then redirect the result.
If you're using linux or another unix, the easiest way to do this is from the command line:
$ psql <connection options> -c "COPY demand.das_april18_pathprocess TO STDOUT (FORMAT CSV)" > das_april18_pathprocess.csv
copy ( select * from demand.das_april18_pathprocess) to '/home/katerina/das_april18_pathprocess.csv' with CSV header ;

Postgresql cannot find file name specified in copy command

I try this:
COPY gemeenten
FROM 'D:\CBS_woningcijfers_2014.csv'
DELIMITER ';' CSV
and get this:
ERROR: could not open file "D:\CBS_woningcijfers_2014.csv" for reading: No such file or directory
I doubled the backslashes, tried an E string, replaced \ by /, used " instead of ' but now I've run out of options. I am sure the file exists. Anybody any idea?
If the file and the PostgreSQL database are on the same machine, then the path and/or name of the file are not correct.
If the file is on your local machine and the database is on another, you cannot use the COPY command in SQL. You have two main choices to make this work:
1) Use psql \copy from your local machine. The syntax is similar, but it will transfer from your local to the remote. The docs are pretty helpful: https://www.postgresql.org/docs/9.5/static/app-psql.html#APP-PSQL-META-COMMANDS-COPY
2) Upload the file to the remote machine and then execute your command. Just make sure you are referencing the correct path and filename.

Using COPY FROM in postgres - absolute filename of local file

I'm trying to import a csv file using the COPY FROM command with postgres.
The db is stored on a linux server, and my data is stored locally, i.e. C:\test.csv
I keep getting the error:
ERROR: could not open file "C:\test.csv" for reading: No such file or directory
SQL state: 58P01
I know that I need to use the absolute path for the filename that the server can see, but everything I try brings up the same error
Can anyone help please?
Thanks
Quote from the PostgreSQL manual:
The file must be accessible to the server and the name must be specified from the viewpoint of the server
So you need to copy the file to the server before you can use COPY FROM.
If you don't have access to the server, you can use psql's \copy command which is very similar to COPY FROM but works with local files. See the manual for details.