Python run select query in PostgreSQL

Execute sql select query. Credentials are loaded from .env file. Choose table and column name. If there is no errors result is outputed to the screen.

pythonpostgresqlsqlpsycopg.env

Required packages

You need below packages to use the code generated by recipe. All packages are automatically installed in MLJAR Studio.

psycopg>=3.2.1

Interactive recipe

You can use below interactive recipe to generate code. This recipe is available in MLJAR Studio.

In the below recipe, we assume that you have following variables available in your notebook:

conn (type Connection)

Python code

# Python code will be here

Code explanation

Check if there is an open connection.
If not then open the connection.
Try to run select query.
Fetch results and show them to the user.
If error occurs raise exception.

Example Python notebooks

Please find inspiration in example notebooks

Postgresql cookbook

Code recipes from Postgresql cookbook.

« Previous: Raw query
Next »: Run insert query