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Northwind database for Postgres

A simple sql script that will populate a database with the famous northwind example, adapted for postgres.

Getting started:

Manually

Use the provided sql file nortwhind.sql in order to populate your database.

With Docker and docker compose

Pre-requirement: install docker and docker-compose

https://www.docker.com/get-started

https://docs.docker.com/compose/install/

1. Run docker-compose

> docker-compose up
...
... Lots of messages...
...
Creating network "northwind_psql_db" with driver "bridge"
Creating volume "northwind_psql_db" with default driver
Creating volume "northwind_psql_pgadmin" with default driver
Creating pgadmin ... done
Creating db      ... done

2. Run psql client:

Method 1: Via the docker-compose container

Open another terminal window, and type:

> docker-compose exec db psql -U postgres -d northwind

psql (13.2 (Debian 13.2-1.pgdg100+1))
Type "help" for help.

northwind=# select * from us_states;
 state_id |      state_name      | state_abbr | state_region
----------+----------------------+------------+--------------
        1 | Alabama              | AL         | south
        2 | Alaska               | AK         | north
        ...

Alternatively, you can launch bash, then psql:

docker-compose exec db /bin/bash

# You are now inside the "db" docker container
psql -U postgres northwind
Method 2: Direct access via the port 55432

The "db" docker exposes postgres on the port 55432. If you have psql on your path, you may connect to it via:

# Run this directly from your computer (this will connect to the docker db)
psql -U postgres northwind -p 55432

3. Connect PgAdmin

Access to PgAdmin at the url: http://localhost:5050

Add a new server in PgAdmin:

  • General Tab:
    • Name = db
  • Connection Tab:
    • Host name: db
    • Username: postgres
    • Password: postgres

Then, select database "northwind".

4. Stop docker-compose

Stop the server that was launched by docker compose up via Ctrl-C, then remove the containers via:

docker-compose down

5. Files & persistence

Your modifications to the postgres database(s)will be persisted in the postgresql_data docker volume, and can be retrieved once you restart docker compose up.

If you need to delete the database data, run docker-compose down -v (the database will then be repopulated from scratch when running docker-compose up).

If you need to upload any files into your db container, just copy and paste them to the files local folder. They will be available at the /files path inside the db container.