Rails db:create error - PG::ConnectionBad: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "_development" does not exist

Backend>Questions

Ruby on Rails book recommendations please

Hello and happy new year! I would like to buy a Ruby On Rails ebook for learning purpose. What would be the ROR equivalent of “Programm...

/ruby /rails #book

17 1795 7

2021-01-06 15:40:50 UTC

New

Backend>Questions

Event Driven Architecture / Sourcing resources?

Does anybody have good learning resources with regards to going into Event Driven Design, Architecture or Sourcing? I got recommended Er...

#question #help-needed #book #cqrs #event-sourcing

23 2306 8

2021-04-11 12:57:06 UTC

New

Backend>Questions

Can Phoenix LiveView be used in multi-page applications or does it have to be a SPA?

Can Phoenix LiveView be used in multi-page applications, unlike React/Vue/Blazor which seems to be targeted for SPA?

/phoenix #liveview

6 2595 4

2021-03-02 07:00:35 UTC

New

Backend>Questions

Export data from Oracle export files (expdp) to PostgreSQL

Hey everybody! I’m working on the project that includes import of Oracle data to PostgreSQL. That data comes as Oracle export (expdp) fi...

#postgres #oracle

2 1716 1

2021-03-24 14:42:25 UTC

New

Backend>Questions

Dialyzer does not catch errors on returned functions

Background While playing around with dialyzer, typespecs and currying, I was able to create an example of a false positive in dialyzer. ...

/elixir

13 1210 6

2022-02-22 12:25:37 UTC

New

Backend>Questions

Is there a way to have Elixir Records without default values?

Background I am trying to find a cheap and easy way to create New Types in Elixir, and Records seem to be just what I would need. Probl...

/elixir

10 1008 2

2022-04-06 13:38:59 UTC

New

Backend>Questions

What is better to start study GO ? Book or course?

Hi, Recommend pls your favorite learning resources in Go, with best books, podcasts etc.

/go

6 1299 5

2022-06-15 05:04:36 UTC

New

Backend>Questions

Fibonacci series using java

I wrote this code to calculate Fibonacci numbers by specifying the size. The results are correct, however the one thing that concerns me ...

/java

4 1239 1

2023-02-16 14:26:19 UTC

New

Backend>Questions

What's wrong with my Phoenix LiveView code?

Currently reading the book “Programming Phoenix LiveView”. At the end of the Chapter 1, I’m trying to solve the guess game. If the user ...

/elixir /phoenix #liveview

6 881 4

2023-11-04 11:04:28 UTC

New

Backend>Questions

What do you think is a good direction to go for someone with a Rails background?

Hey community, this is my first post here so I will try to be as concise as possible and I appreciate any feedback. I’ve been writing Ro...

/ruby /rails #help-needed

18 529 11

2025-07-10 00:55:23 UTC

New

General Dev>Dev Chat

What dev-related stuff have you been up to?

Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...

#community

1036 18703 383

2025-07-17 12:37:50 UTC

New

Backend>In The News

Bit – A modernized Git CLI written in Go

github.com

/go #git

1 5702 0

2020-10-12 18:31:12 UTC

New

Community>Journals

Programming Erlang Book Club

My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...

/erlang /book-programming-erlang-2nd-edition #book-club

195 6599 95

2025-02-16 20:22:17 UTC

New

General Dev>Dev Chat

How fast do you type? Check your WPM here!

Do the test and post your score :nerd_face: :keyboard: If possible, please add info such as the keyboard you’re using, the layout (Qw...

typing-speed-test.aoeu.eu

/keyboards

82 7228 31

2021-07-10 05:52:20 UTC

New

General Dev>Dev Chat

Do you have any (non-dev) hobbies?

Not sure if following fits exactly this thread, or if we should have a hobby thread… For many years I’m designing and building model air...

#community

200 3768 78

2025-01-24 20:03:51 UTC

New

macOS>Chat

My thoughts on macOS vs Linux

Small essay with thoughts on macOS vs. Linux: I know @Exadra37 is just waiting around the corner to scream at me “I TOLD YOU SO!!!” but I...

#macos #linux

166 8315 69

2021-04-10 22:36:29 UTC

New

Linux>Questions

What is the most minimalist Linux server distro?

I am asking for any distro that only has the bare-bones to be able to get a shell in the server and then just install the packages as we ...

#linux #servers

66 23143 24

2022-04-13 13:30:03 UTC

New

General Dev>Dev Chat

PragProg’s Medium Posts

Hello everyone! This thread is to tell you about what authors from The Pragmatic Bookshelf are writing on Medium.

#pragprog #blog-post

1145 27688 760

2025-07-10 13:36:16 UTC

New

Community>In The Spotlight

Spotlight: James Stanier (Author) Interview and AMA!

Author Spotlight James Stanier @jstanier James Stanier, author of Effective Remote Work , discusses how to rethink the office as we e...

#pragprog #remote /book-effective-remote-work

29 4265 12

2022-02-08 15:17:22 UTC

New

General Dev>In The News

X can’t stop spread of explicit, fake AI Taylor Swift images

Will Swifties’ war on AI fakes spark a deepfake porn reckoning?

arstechnica.com

/swift

0 6739 0

2024-01-26 05:47:12 UTC

New

Rails db:create error - PG::ConnectionBad: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "_development" does not exist

AstonJ

Rails db:create error - PG::ConnectionBad: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "_development" does not exist

Where Next?

Popular Backend topics

Ruby on Rails book recommendations please

Event Driven Architecture / Sourcing resources?

Can Phoenix LiveView be used in multi-page applications or does it have to be a SPA?

Export data from Oracle export files (expdp) to PostgreSQL

Dialyzer does not catch errors on returned functions

Is there a way to have Elixir Records without default values?