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Postgresql – Find N latest rows for each row in the main table
For each row in table line there can be many rows in table line_version. I need to find only N
Postgresql – Supabase Policy: How to allow update only a specific column after triggering a function
I have 2 tables:
Events
Attendance
I wrote a function that gets triggered on every row insert or
How to do nested sorting in postgresql
I have columns id (string), parentId (string or null) and order (number). It’s tree like structure where rows with the
PostgreSQL query for currency conversion rates
Let’s consider the database table for currency conversion looks as below:
fromCurrency
toCurrency
effective date
conversion
Optimising a query – PostgreSQL – XPATH
I have the query (PostgreSQL) which works correctly.
with xml_test as (
select
'<!--Build-Version: 1.564-REVb37dd024a8-20220530T1418--><tns:Message xsi:schemaLocation="https://appprod.be/Trivia/documents/Docs/XSDs/v1/T013
Postgresql – How can I limit number of items in array that comes from inner join?
I have the next query, what returns me categories with an array of games that assignment to them. How can
Postgresql – UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd4 in position 61: invalid continuation byte
Why I have problem like that? How did you solve that? I am trying to connect to postgresql
import psycopg2<br
Postgresql – Postgres password reset issue
I was trying to reset the password.
r9mzsy20=# ALTER USER 9mz_dba WITH PASSWORD '92837474';
ERROR: syntax error at or
Postgresql – postgres auto vacuum & analyze not updating until manually ran?
I have a postgres table that looks like this:
CREATE UNLOGGED TABLE IF NOT EXISTS batch_update_data (
id TEXT
Postgresql – sqlmodel query with a subselect self join
Trying to do a self join on a model but am getting confused how to do so in sqlmodel ORM.