I'm currently writing a script to build my vagrant box. I got PHP 7 and some other tools installed, as well as PostgreSQL, but when creating the database and trying to grant privileges I'm getting the following error
ERROR: relation "projectname" does not exist
This is my script (the important stuff)
#!/usr/bin/env bash
projectname='projectname'
echo "Initializing database"
sudo apt-get install -y postgresql
sudo -u postgres psql -c "CREATE USER $projectname WITH PASSWORD 'xxxx';"
sudo -u postgres psql -c "CREATE DATABASE $projectname;"
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON $projectname TO $projectname;"
Everything works until the last step
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON $projectname TO $projectname;"
When trying this out, I'm getting the above error. I also tried to write it manually
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON projectname TO projectname;"
Same error.
I also tried to wrap it in quotation marks
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON 'feedparser' TO 'feedparser';"
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON \"feedparser\" TO \"feedparser\";"
What exactly am I doing wrong here?
Documentation about GRANT PRIVILEGES says that your version GRANT command is suitable for grant rights to table. If you want to grant rights to database you should use GRANT ALL PRIVILEGES ON DATABASE projectname TO projectname;. Below I show the results of this commands:
postgres=# CREATE USER projectname WITH PASSWORD 'projectname';
CREATE ROLE
postgres=# CREATE DATABASE projectname;
CREATE DATABASE
postgres=# GRANT ALL PRIVILEGES ON projectname TO projectname;
ERROR: relation "projectname" does not exist
postgres=# GRANT ALL PRIVILEGES ON DATABASE projectname TO projectname;
GRANT
Related
Below I'm creating database mydb and populating it. Notice that the last step I perform is setting the password for postgres. This is simply to avoid password prompts during previous steps.
I followed steps in other StackOverflow posts, namely issuing the GRANT ALLs on TABLES, SEQUENCES and FUNCTIONS, but am still facing the below issue.
mydb.sh:
su - postgres <<xEOFx
set +H
psql -c "CREATE DATABASE mydb"
psql -c "CREATE USER user01 WITH ENCRYPTED PASSWORD 'SomePassword'"
psql -c "GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public to user01"
psql -c "GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public to user01"
psql -c "GRANT ALL PRIVILEGES ON ALL FUNCTIONS IN SCHEMA public to user01"
psql --dbname=mydb --username=postgres -f /tmp/mydb.sql
psql -c "GRANT ALL PRIVILEGES ON DATABASE mydb TO user01"
psql -c "ALTER USER postgres WITH PASSWORD 'AnotherPassword'"
exit
xEOFx
The script does not fail, but I also cannot access the mydb as user01:
jdoe$ psql --username=user01 --dbname=mydb
Password for user user01:
psql (13.2)
Type "help" for help.
mydb=> \c
You are now connected to database "mydb" as user "user01".
mydb=> \dt
List of relations
Schema | Name | Type | Owner
--------+---------------+-------+----------
public | some_table | table | postgres
(1 rows)
mydb=> select * from some_table;
ERROR: permission denied for table some_table
mydb=>
SIDEBAR: I do notice that the owner of some_table is postgres, and would prefer that it be user01. Perhaps this could be part of the issue.
What am I missing?
Thank you in advance.
EDIT: Note that I tried running psql --dbname=mydb --username=postgres -f /tmp/mydb.sql before the GRANT ALL statements, too.
You are granting privileges to tables, sequences, and functions in the public schema in the database postgres, not mydb. By default, psql will connect to the database named the same as the current user, which is postgres in this case. Make sure you run the commands in mydb by adding -d mydb to your psql commands.
I want to simplify my life and automate the process of adding/dropping my test db via an npm script, however I am running into issues.
Attempt 1:
"drop-db:local": "psql postgres \"drop database blog_db; create database blog_db; \\c blog_db; CREATE EXTENSION \"pgcrypto\";\""
After running this, I keep getting the following error
psql: error: could not connect to server: FATAL: Peer authentication failed for user "drop database blog_db; create database blog_db; \c "
Attempt 2:
changed
psql postgres
to
psql -h localhost -U rm postgres
So this opens the db in my terminal but that seems to ignore some stuff as mentioned in the msg below
psql: warning: extra command-line argument "drop database blog_db; create database blog_db; \c blog_db; CREATE EXTENSION pgcrypto;" ignored
What am I doing wrong?
This is a list of my db users
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------------------+-----------
postgres | Superuser, Create role, Create DB, Replication, Bypass RLS | {}
rm | Superuser, Create DB | {}
db version: psql (12.2 (Ubuntu 12.2-2.pgdg18.04+1))
You need to use -c or -f with your psql command.
As the psql help shows:
-c, --command=COMMAND run only single command (SQL or internal) and exit
-f, --file=FILENAME execute commands from file, then exit
As you are using multiple commands so it will be better of you use -f followed by a sql file name that has all the commands e.g your drop_create_db.sql file can have following code:
drop database blog_db;
create database blog_db;
\c blog_db;
CREATE EXTENSION "pgcrypto";
And you may run this file by using the following command
"drop-db:local": psql -U postgres -d postgres -p 5432 -f /tmp/drop_create_db.sql
I have the below three lines to be run in commandline using psql how can i do it.
CREATE DATABASE myproject;
CREATE USER myprojectuser WITH PASSWORD 'password';
GRANT ALL PRIVILEGES ON DATABASE myproject TO myprojectuser;
I just want to pass the sql strings as it is.
As per the docs psql -c 'command;'
psql -c 'CREATE DATABASE myproject;' -c "CREATE USER myprojectuser WITH PASSWORD 'password';" -c 'GRANT ALL PRIVILEGES ON DATABASE myproject TO myprojectuser;'
As #horse suggested -f filename is a better option. You can also put them into a variable using a here document and execute it with the -c option .
read -r -d '' my_sqls << EOM
CREATE DATABASE myproject;
CREATE USER myprojectuser WITH PASSWORD 'password';
GRANT ALL PRIVILEGES ON DATABASE myproject TO myprojectuser;
EOM
psql -c "$my_sqls" # running all the lines.
I am having troubles getting started with psql. I can login using the script below
myusername#ubuntu:~/Desktop/dbscripts$ sudo su - postgres
postgres#ubuntu:~$
But, once here, I cannot figure out how to find my .sql file.
I tried the options supplied by Bolo here:
How to import existing *.sql files in PostgreSQL 8.4?
But they only give
myusername#ubuntu:~/Desktop/dbscripts$ psql -U root -d first -f myscript.sql
psql: FATAL: Peer authentication failed for user "root"
and
myusername#ubuntu:~/Desktop/dbscripts$ psql -f myscript.sqlp
sql: FATAL: role "myusername" does not exist
and
myusername#ubuntu:~/Desktop/dbscripts$ sudo su - postgres
postgres#ubuntu:~$ \i myscript.sql
The program 'i' is currently not installed. To run 'i' please ask your administrator to install the package 'iprint'
This can be handled from any of the above options you tried. In which path do you have myscript.sql? After you do su - postgres, give the full path . So it will be psql -d first -f <pathtosqlfile>/myscript.sql. psql -U root will not work unless you have a user root in the database. Try psql -U postgres. You can do \i sqlscript at psql prompt, not at linux command prompt as you have done. The error you are getting "role "myusername" does not exist" can be avoided either by using -U postgres (or any other db user) or by setting the PGUSER environment variable.
I'm trying to build a setup script to automate the development environments creation, but I'm having trouble both trying to pipe or using the -c modifier for psql.
I've tried:
sudo su postgres psql -c "ALTER ROLE postgres WITH password 'pass'"
and
sudo su postgres psql -c "ALTER ROLE postgres WITH password 'pass';"
Both of which say "ALTER: command not found"
I've also tried pipe, but I'm not able to combine it with su correctly
eg: I tried something like
sudo su postgres echo "ALTER ROLE postgres WITH password 'pass'" | psql
But postgres can't execute "echo"
And:
echo "ALTER ROLE postgres WITH password 'pass'" | sudo su psql
Which just doesn't work.
So, my first question is: how can I execute this simple command from a sh file?
And the second one, less related: how can I use different users in the commands chained with pipe?
What's wrong is the lack of -c or --command for su to indicate that the rest of the line is a command.
But su is not needed anyway, because there's already sudo. Do this instead:
sudo -u postgres psql -c "ALTER ROLE postgres WITH password 'pass'"
If you are just like me, make sure you are not running this from:
bash-4.2$
but:
postgres=#