LAMP architecture, how to deploy and manage multiple servers for one domain name if users are distributed in various countries around the world? 1. How to resolve a domain name to a different server IP? 2, there will be multiple programs and databas...
LAMP architecture, how to deploy and manage multiple servers for one domain name if users are distributed in various countries around the world? 1. How to resolve a domain name to a different server IP? 2, there will be multiple programs and databas...
what plug-ins to use ...
problem description to develop single-choice, multiple-choice, right and wrong questions, how to design the database? How many watches should I design? I can t figure it out, for example, single selection and multiple selection are of the same type, ...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...
I didn t want to register repeatedly, but wanted to integrate into a microservice, so I began to search, think, and design, but I encountered a key problem as I walked: where should I put my user data? the reason for this confusion is to consider t...
problem description to develop single-choice, multiple-choice, right and wrong questions, how to design the database? How many watches should I design? I can t figure it out, for example, single selection and multiple selection are of the same type, ...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...
I didn t want to register repeatedly, but wanted to integrate into a microservice, so I began to search, think, and design, but I encountered a key problem as I walked: where should I put my user data? the reason for this confusion is to consider t...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...
I didn t want to register repeatedly, but wanted to integrate into a microservice, so I began to search, think, and design, but I encountered a key problem as I walked: where should I put my user data? the reason for this confusion is to consider t...
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it is not clear which process XSS is escaped in. If you escape before inserting into the database, it is possible that the escaped character length exceeds the length defined by the database field, making it impossible to store or truncated. However, if ...
A new mysql user has been created. After starting mysql, check to see if it is successful. It didn t work out. start: [root@izwz9ehou8f1mblwoj6hb4z mysql]-sharp . bin mysql user=mysql basedir= usr local mysql datadir= usr local mysql data . bin mysq...
problem description: change 10001 to task.task_no in the following statement SELECT `task`.*,(case task.task_type when 1 then (select count(*) from (select uid from ncd_user_daily_tasks_record where task_no=10001 group by uid) as temp1) else (select co...
I now have a user record table, which specially records the like behavior of users. I now divide the like table into four tables, five processes write data at the same time, and now the writing speed is the fastest 0.06s, 0.08s the slowest 0.12s, I wo...
the code is as follows: view.py . @ approval.route ( submit , methods= [ GET , POST ]) @ login_required def _ submit (): form = LEForm() if current_user.can(Permission.WRITE) and request.form.get( submit , None) == "": po...
What s the difference between mysql between and and > < ...
in the mysql document: https: dev.mysql.com doc ref. I don t quite understand some of the following sentences. I d like to ask you for help The index may also be used even if the ORDER BY does not match the index exactly, as long as all unused ...
sql transaction rollback (rollback) does not take effect. mysql version 5.7.24, macOS10.14, sets autocommit to OFF does not take effect, change the num=5, of On The Road to 1, withdraw the transaction, do not take effect, why is num or 1? < table >...
I encountered a problem at the beginning of learning react,. Ask to set the class error of the current display route . import React,{ Component } from "react"; import router1 from . router1 ; import router2 from . router2 ; import route...
as shown in the figure, the description of url in this parameter name says, the developer server interface address. Does this address have to be https? My server has not configured this ...
when clipping an image with cropper.js on the ios mobile end, the image returned is black when the uploaded picture is larger than 6m. Cropper.js v1.3.5 (cropper version) https: github.com fengyuanch. ...
install caffe2, https: caffe2.ai docs gettin. according to the official website. after vs2017 was compiled successfully, the caffe2_pybind11_state.dll file was not found. How to solve this problem? ...
when using layui: http: www.layui.com doc modu. < kbd > < kbd > I read the manual. A table, I want to use the data I requested, then combine it and render it to table. It is true that url is required here, can this not achieve my goal? ...