mysql tag

409 questions

1 answers
46 views
0

In mysql, which column defaults should I write, null or not null?

Example) member_tableno - auto increment,id - not null,pw - not null,email, phone, address For example, in the table above, only id and pw are required inputs I wonder if the e-mail, phone, and addres...

mysql

2 years ago

1 answers
106 views
0

I'm making a chat like Kakao Talk with MySQL, but the query is extremely slow depending on the number of LIMITs

Hello. Like Kakao Talk, we are implementing a chat that shows the past conversation when you look up while looking at the recent conversation.SELECT * FROM chat WHERE user_id = user ID order by chat_i...

mysql database index sql

2 years ago

1 answers
114 views
0

Bulletin board page processing problems

Hi, everyone. I uploaded it because I had a question about the processing of the bulletin board page.To know the size of the page itself when implementing pagination on the webDon't you need the total...

pagination mysql ruby-on-rails

2 years ago

1 answers
99 views
0

Node.js Web development in progress. First of all, DB is needed for membership management, but I think people often use mongoDB, what about MySQL?

Node.js is being studied and developed.First of all, I'm going to use DB because I need a member management function, so I'm seriously thinking about what to use.It seems that MEAN often uses mongdb f...

mongodb mysql node.js web

2 years ago

1 answers
49 views
0

I'm trying to link mysql in c#, but I don't know what the problem is.

When compiling the Insert function, it doesn't seem to be open.The select function causes a compilation error.What's the problem?using System;using System.Collections.Generic;using System.Linq;using S...

c# mysql

2 years ago

1 answers
46 views
0

How do I insert the Bitmap file into mysql?

I am creating a mobile community application application.Currently, I logged in with Facebook and received the profile picture in Bitmap format.I want to save the member's information in mysql, but I ...

android mysql php

2 years ago

1 answers
131 views
0

Can the charset setting of the web page and the charset of the server and db be different?

We are currently creating a web page with mysql, phpapache on the hosting server.The charset of the server and mysql is set to utf-8.But the page files on the web page are set to euc-kr.The Web was cr...

mysql centos php apache charset

2 years ago

1 answers
119 views
0

Find the best Database connection module in Python.

I'm a beginner at Python.I'd like to add a database module (mysql) and do this and that. https://pypi.python.org/pypi?%3Aaction=search&term=mysql&submit=searchIf you look here, you can see a l...

python database pypi mysql

2 years ago

1 answers
78 views
0

1. Where is the exact location to implement the db connection, release code? 2. How to process user information security, such as db or email access information

1.var mysql = require('mysql');var conn = mysql.createConnection(dbconfig.connection);conn.connect(function(err) { if (err) { console.log('Error connecting: ' + err.stack); return; } console.log('conn...

node.js mysql config

2 years ago

2 answers
39 views
0

What do you call this skill(?) in mysql?

Hello.I have a question to ask.First of all There is a function to take a test in the program I'm making.You can take the test several times.And I'd like to save the test scores in the database with t...

mysql

2 years ago

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