Ran the following command based on the recommendation in a document:
db2set -g DB2SYSTEM=%computername%
db2extsec -u %computername%\db2users -a %computername%\db2admns
After that DB2 CLP is not opening. I just see a windows command prompt window. How can I fix it?
Related
I've been using PSQL 14 on my Windows 10 desktop with Git Bash for a while now without issue. Recently I've had to transition to a Windows 8.1 laptop, and I've come across a problem with running the filename parameter for PSQL. When attempting to run a SQL file with the line psql.exe -U <user> -f src/sql/test.sql the terminal hangs until I use Ctrl+C to exit the command. I can run psql -U <user> and then copy & paste the SQL file text into the terminal to get the results I want, but I don't get why this issue is happening in the first place.
I've checked my PATH environment variables and I do have both the /bin and /lib paths in there. I have also tested changing -f with the < operator, which didn't change anything. Running PSQL on Windows 8.1 isn't an issue, it's just this particular command.
I have postgres installed on an ubuntu machine, and I am able to enter into the command line via something along the lines of:
$ sudo -u postgres psql
psql (10.15 (Ubuntu 10.15-0ubuntu0.18.04.1))
Type "help" for help.
postgres=#
And I can start/stop the server by doing something like:
$ sudo service postgresql
Usage: /etc/init.d/postgresql {start|stop|restart|reload|force-reload|status} [version ..]
Those both seem fine. However, I would like to run postgres in single-user mode to do a couple tests. On the postgres page it gives a few examples, such as:
To start a single-user mode server, use a command like
postgres --single -D /usr/local/pgsql/data other-options my_database
However, if I use the 'postgres' command, I just get an error saying I don't have that command:
$ postgres
Command 'postgres' not found, did you mean:
What do I need to install to run the 'postgres' command in order to enter single-user mode?
as you have not export the binary path that's why it's can't find your binary of postgres.
use this command:
/usr/lib/postgresql/10/bin/postgres --single -D /usr/local/pgsql/data other-options my_database
or,
you can export the path in bash
first open the bashrc with this command:nano ~/.bashrc
add this line in the end :PATH="/usr/lib/postgresql/10/bin/:$PATH"
run this command source ~/.bashrc
the just use postgres --single -D /usr/local/pgsql/data other-options my_database
you can also find where your binary is with this command : find /usr/lib -iname 'postgres'
It is already installed, it is just not in your PATH, as it is not anticipated you would use it manually.
It is probably somewhere like "/usr/lib/postgresql/10/bin/postgres", or you can use locate or find to find it.
Ubuntu has conf files spread over several places so:
/usr/lib/postgresql/13/bin/postgres --single -D /var/lib/postgresql/13/main -c "config_file=/etc/postgresql/13/main/postgresql.conf"
When I log into my PostgreSQL server manually on Ubuntu and execute a command, I can then find it logged in /root/.psql_history.
However when I try to run a command in a bash script via psql -c "*query goes here*", the command returns data but is not logged in .psql_history.
Has anyone encountered this before?
Command line retrieval and editing, as well as the history file, are functions of the “readline” library that is linked to psql.
Readline support is only active in interactive sessions, so there is also no history written if you invoke psql with the -c or -f options.
First off, let me say that I'm new to both using Mac and PostgreSQL. I just installed Postgres using their installer and it was installed in /Library/Postgres/... when I tried running createdb from the terminal it returned an error createdb: command not found. I ended up using /library/postgresql/9.6/bin/createdb before I coud get it to work.
Here's my question, how do I set it so that I don't have to type in the full path again to use the createdb command.
I'd love a detailed explanation.
Thanks
First you need to execute the psql command to get into the postgresql interacive shell.
In your terminal:
psql
Postgresql interactive shell should start. In this shell
> createdb yourdatabasename;
Btw: If psql is not found you will probably need to add it to your path and restart your terminal, something like this with the path matching your machine:
export PATH=/Library/PostgreSQL/9.5/bin:$PATH
I am trying to restore the postgres sql data from a file . I am trying to do so but it is not importing .
Here is the command which i am using:
postgres-# psql -hlocalhost -p5432 -u postgres -d test -f C:/wamp/www/test/database_backups/backup004.sql
Please help me what I am doing wrong .
I am using windows and the above command does not throws any error but it does not import data.
Regards
Surjan
The only immediate thing I can see there is the capitilsation of -u for username (should be -U).
Correction: You're typing the command line into the psql shell.
You should exit to the CMD.EXE shell, and try the command there. With the correct capitalisation of -U, by the way.
OR, use this to replay the script into that psql shell:
\i C:/wamp/www/test/database_backups/backup004.sql
The forward slashes don't cause a problem on my Windows machine.