postgresql - List Questions

EN VI

Posts (0)

Questions (16)

Best Solution Bot

Node.js - Keep getting the Error: getaddrinfo ENOTFOUND postgres when I try to connect to docker container?

postgres is on the postgres-db-network but node_app is not. so they're not networked together. So they can't talk. Thus, docker does not expose their container names to each other as resolvable host...

Tags: node.js, postgresql, docker

Best Solution Bot

Java - Is it guaranteed that constraint violation is flagged at the end of transactional block?

The transaction doesnt finish until the end of the method. The save doesnt flush until the transaction finishing prompts it to. So yes, you could get a constraint violation that rolls back the save af...

Tags: java, spring, postgresql

Best Solution Bot

Parsing key-value pairs, selecting based on value, and creating new column with SQL?

So, let's create the schema: create table mytable(col1 text, col2 text); insert into mytable(col1, col2) values ('some_string', '{key1:0, key2:1, key3:0}'), ('some_string', '{key1:0, key2:0, key3:0}'...

Tags: sql, string, postgresql

Best Solution Bot

PostgreSQL: How to Enter/Update data in a column for each unique customer and increment it by 1 until the end of Table?

If you want this as a one-off update, use row_number() window function and set up the window to be partitioned by client_id: demo with cte as (select id,row_number()over w1 as number from...

Tags: postgresql, multiple-columns, dbeaver

Best Solution Bot

Postgresql - current_setting with -v option?

A DO statement is a string literal, and you cannot substitute a psql variable inside a string literal. Moreover, psql variables are not read with current_setting() — that is for configuration paramete...

Tags: postgresql, psql

Best Solution Bot

Sql - Can I use INSERT statement with select to make a condition?

Assuming that the most recent record would be the one with the greatest created_at value, you could use an INSERT INTO ... SELECT as follows: INSERT INTO users_ill (user_id) SELECT $1 WHERE NOT EXISTS...

Tags: sql, node.js, postgresql

Best Solution Bot

Python - Django throws the duplicate key value violates unique constraint error?

Not sure what is happening here. Django fetches the data from db and sends it to the browser, but it doesn't "sees" the ID while trying to write the data to the db. Django does not generate ids, tha...

Tags: python, django, postgresql

Best Solution Bot

Postgresql explain analyze actual time not adding up?

Use this to inspect your execution plans. These don't add up because they don't have to. From Using EXPLAIN in the doc: The Planning time shown by EXPLAIN ANALYZE is the time it took to generate the...

Tags: postgresql, explain

Best Solution Bot

Postgresql - How create a new table, which will have a specific value?

Not sure about the question, but to insert a date you can do it like this: INSERT INTO appointments (appointment_date) VALUES('2024-03-01'); Or for today: INSERT INTO appointments (appointment_date)...

Tags: postgresql, sql-insert, create-table

Best Solution Bot

Postgresql jsonb_set function does not exists?

You've passed incorrect arguments to jsonb_set. The correct arguments are... jsonb_set ( target jsonb, path text[], new_value jsonb [, create_if_missing boolean ] ) → jsonb You're missing the path.

Tags: postgresql

Pinned Posts

Top 5 Best High CPM Ads Networks For Publishers In 2023

Tags: ads, Publishers, Ads Networks

HawkHost Coupon 2023 – Hawk Hosting Discount Code Up to 40% Lifetime Update Every Day

Tags: Server, host, cloud