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[[wikipedia:psql]] command line tool to connect and execute queries against a [[PostgreSQL]] (port 5432) or [[Amazon Redshift]] database (port [[5439]]). | [[wikipedia:psql]] command line tool to connect and execute queries against a [[PostgreSQL]] (port 5432) or [[Amazon Redshift]] database (port [[5439]]). | ||
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* Ubuntu installation: <code>[[apt install]] postgresql-client-12</code> | * Ubuntu installation: <code>[[apt install]] postgresql-client-12</code> | ||
| − | + | * <code>[[$HOME/.pg service.conf]]</code> | |
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| − | * <code>[[$HOME/. | ||
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== Examples == | == Examples == | ||
* <code>[[sudo -u postgres psql]]</code> | * <code>[[sudo -u postgres psql]]</code> | ||
| − | + | Connect to remote database: | |
| − | * <code> | + | * <code>psql --host=mypostgresql.c6c8mwvfdgv0.us-west-2.rds.amazonaws.com --port=[[5432]] --username=awsuser --password --dbname=mypgdb</code> |
* <code>psql -h localhost -U YOUR_USERNAME DB_NAME</code> | * <code>psql -h localhost -U YOUR_USERNAME DB_NAME</code> | ||
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* <code>psql -h <REMOTE HOST> -p <REMOTE PORT> -U <DB_USER> <DB_NAME></code> | * <code>psql -h <REMOTE HOST> -p <REMOTE PORT> -U <DB_USER> <DB_NAME></code> | ||
| − | * <code> | + | * <code>psql service=MyConfiguredDB</code> (Database needs to be defined in <code>[[.pg_service.conf]]</code>) |
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=== Other examples === | === Other examples === | ||
psql | psql | ||
| − | psql: | + | psql: FATAL: [[role]] "root" does not exist |
[[su - postgres]] && psql | [[su - postgres]] && psql | ||
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Type "help" for help. | Type "help" for help. | ||
postgres=# | postgres=# | ||
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sudo -u postgres psql | sudo -u postgres psql | ||
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Error: You must install at least one postgresql-client-<version> package | Error: You must install at least one postgresql-client-<version> package | ||
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FATAL: no [[pg_hba.conf]] entry for host "1x.1xx.2xx.1xx", user "your_username", database "your_db_name", SSL off | FATAL: no [[pg_hba.conf]] entry for host "1x.1xx.2xx.1xx", user "your_username", database "your_db_name", SSL off | ||
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psql | psql | ||
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connections on Unix domain socket "[[/var/run/postgresql/]].s.PGSQL.5432"? | connections on Unix domain socket "[[/var/run/postgresql/]].s.PGSQL.5432"? | ||
| − | + | macOS | |
psql | psql | ||
psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory | psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory | ||
| − | + | Is the server running locally and accepting connections on that socket? | |
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psql service=pro | psql service=pro | ||
| − | psql: error: could not connect to server: | + | psql: error: could not connect to server: Connection refused |
| − | + | Is the server running on host "your_rds_instance.eu-central-1.[[rds.amazonaws.com]]" (7.123.109.22) and accepting | |
| + | TCP/IP connections on port [[5433]] ? | ||
psql | psql | ||
Password for user YOUR_USERNAME: | Password for user YOUR_USERNAME: | ||
psql: error: FATAL: password authentication failed for user "YOUR_USERNAME" | psql: error: FATAL: password authentication failed for user "YOUR_USERNAME" | ||
FATAL: no [[pg_hba.conf]] entry for host "xx.xx.xx.xx", user "YOUR_USERNAME", database "YOUR_DATABASE", [[SSL]] off | FATAL: no [[pg_hba.conf]] entry for host "xx.xx.xx.xx", user "YOUR_USERNAME", database "YOUR_DATABASE", [[SSL]] off | ||
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== Options == | == Options == | ||
| − | * Port (<code>-p</code>): <code>psql -p | + | * Port (<code>-p</code>): <code>psql -p 5432</code> |
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== Operations == | == Operations == | ||
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* <code>[[.psqlrc]]</code> | * <code>[[.psqlrc]]</code> | ||
* [[Postgres installation]]: <code>[[apt install postgresql]]</code> | * [[Postgres installation]]: <code>[[apt install postgresql]]</code> | ||
| + | * <code>[[aws rds describe-db-instances]]</code> | ||
* <code>[[nping -tcp]] -p 5432 your_postgres_host -q</code> | * <code>[[nping -tcp]] -p 5432 your_postgres_host -q</code> | ||
* [[Amazon Redshift query editor]] | * [[Amazon Redshift query editor]] | ||
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* <code>[[heroku psql]]</code> | * <code>[[heroku psql]]</code> | ||
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== See also == | == See also == | ||
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