146 questions
I asked the following questions and was able to set them up.When I tried to post an image in the production environment, an error occurred.The Cloudinary configuration I was referring to should have b...
I added data to sqlite using sqlalchemy.Only some data (in this case, password_hash) is not added and becomes null.I'm reviewing it myself, but I can't find any mistakes.Please point out any mistakes ...
How do I use RDB and key-value DB differently?Personally, I understand the difference between whether or not you can create an index later, but is this correct?
For example, if the node.js application is running on an EC2 instance and data is exchanged with an RDS instance, what communication protocol would the EC2 instance and the RDS instance be?When develo...
Question SummaryIn the sequence of PostgreSQL, we believe it will be numbered with the current value of +1 (if INCREMENT is 1).So the next time it's INSERTed, it's numbered 5+1 to 6.However, in the fi...
How do I use CHAR and VARCHAR differently in MySQL 5.7?I understood the following, but is it okay to put fixed length strings in VARCHAR and all VARCHAR?CHAR is a fixed length, so it stores a fixed le...
You are about to implement dynamically generated bulletin boards.I'm asking you this question because I'm curious about how other people implement it.Method 1: Push into one table.==> This method i...
Using the video as a reference, create the following code (app.py) in the web application development course for todolist using Python.>>>from app import db>>>db.create_all()I would ...
I've been designing DB tables so far, and I always get lost.It's about whether the name should be on the transaction table.Generally, it is good to code names and manage them centrally in a master tab...
macOS 10.15.6Ruby 2.5.7Rails 5.2.3[Rails] enum tutorial[Rails] What is enum?Tried creating a select box using enum -Qiita[Rails] Implementation of select boxes using enum and saving to DB - Qiita [Rai...
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