My foos each have a bar. At least they're supposed to. I now want to create and assign bars to all foos that don't. bar is completely detached from foo, it only has an id serial that serves as its…
Trying to run a postgresql procedure using python but not able to rectify the error.. def call_procedure_without_arguments(): try: connection = create_connection() if connection: cursor = connection.cursor() # Call the procedure without any input arguments procname = "call proc_test" cursor.callproc(procname) results…
I am using json_build_object to build a json object using other columns: json_build_object(value1, qty1, value2, qty2, value3, qty3) Every pair (value, qty) go together. I only want the json object to contain the pairs that don't have an empty value.…
I want to count all users that switch from ADVANCED plan to BASIC every month. So, the table plans contain the following data: id userId plan_name start_date 1 20 ADVANCED 2023-06-30 15:07:10.211 2 20 ADVANCED 2023-06-05 12:05:14.289 3 40 BASIC…
I have the following table in PostgresSQL, and I would like to find a function or logic to store the result of the first row in a new column to be used in the second row and so on. The…
I want to filer data from my postgres database. i want to use where clause together with postgres case expressions for filtering data in a single query. i want some thing like this logic select *from [my-table-name] where ( CASE…
I added this line in my settings.py file in order to make a custom User model the auth_user database: AUTH_USER_MODEL = 'main.User' (main is the name of one my apps and it contains all of the models). But I later…
I have installed the new postgresql-12 on my ubuntu 22 and set the path but when I want to know the postgrsql status it is giving me this Error. Can anyone help me with that? Thank you.
When I select from the table by targeting the station_id column like this: const getStationById = async ( id ) => { try { const station = await pool.query(`SELECT * FROM stations WHERE "station_id" = ${id}`) return station.rows[0] } catch…
I am trying to compile a C program that uses libpq library in a Docker container. Here's my Dockerfile: FROM ubuntu:latest RUN apt-get update && apt-get install -y build-essential libpq-dev WORKDIR /app # Copy the source files into the container's…