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19771 questions


1 answers
494 views
0
What happens if I set the transaction isolation level arbitrarily in the source code?

As for how to set the transaction isolation level, Spring can be set casually by adding @Transactional for each method, or Rails can be set casually by ApplicationRecord.transaction (isolation:read_co...


1 answers
382 views
0
I want to create a Q&A site like Yahoo Chiebukuro.

For Q&A sites like Yahoo Chiebukuro, I think each question has a unique URL.Would it be possible to receive it from the database and display it and give it a unique URL at the same time?If possibl...

2 years ago

2 answers
395 views
0
Rails-created apps only generate routing errors in production (AWS)

rails 6.0.2.1ruby 2.6.3amazon linuxmysqlunicornnginxWe are currently creating an Instagram clone app and deploying it to AWS.I would like to make Easy Login and Regular User Logout work in the same wa...


2 answers
302 views
0
Why do Python's 'and' and 'or' have different results depending on how the values are written to the left and right?

If I enter print(0 or (1 and 2)) in Python, the return value is 2, but if I enter print(0 or (2 and 1))), why is the return value 1?I looked for help, but it didn't work out well.I've tried many patte...

2 years ago

2 answers
336 views
0
Serial terminal no longer appears in drop-down menu in VSCode

Visual Studio Code no longer displays serial terminals.(Image below) With TeraTerm, NuttShell can launch and run the app, so it doesn't seem to be a port driver issue.4.5.1. Serial Port Configuration ...

2 years ago

1 answers
299 views
0
After ver.19.8.x, right-click after rectangular selection to cancel rectangular selection.

Since ver.19.8.x, right-click after rectangular selection to cancel rectangular selection, making it very difficult to insert numbers from right-click after rectangular selection.I don't think it happ...

2 years ago

1 answers
308 views
0
Npm ERR! appears when trying to start the container in docker run

Procedure to build a development environment for Vue.js with Docker - Qiita Based on the above article, we are building a Vue environment using docker. docker build --tag zatu:latest --file Dockerfile...

2 years ago

4 answers
257 views
0
How do you say Repetition Code in Japanese?

Write here because you may not know software engineering or answer in general terms on language sites.How do you say Repetition Code in Japanese?Repetition Code is a bad way to write software where th...

2 years ago

1 answers
247 views
0
I want to check the SQL execution when updating with Ravel 5.8 fill→save

I'd like to check the SQL for performing an update in flll→save in Eloquent ORM.Unable to verify execution SQL.I can actually update it, and in case of find, I can check the execution SQL as expected....

2 years ago

1 answers
121 views
0
How to Configure Class Paths from VM Arguments in Eclipse

I have a question about eclipse.properties file in external folderI'd like to load it.from the VM argument in eclipseJava Build Path > Library > Class Path Is there a way to set up an external f...

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