I just came into contact with using node as a project. There are some things I don"t understand about its database operation, such as the following requirements:
when multiple users access an article at the same time and read the information of the article from the database, will the multiple requests access the database in a certain order or in parallel due to the non-blocking IBO operation of node?
you can send a request pool. Createpool only connects the pipe once, and then you can be responsible for information transmission. You are talking about the asynchronous problem of node. But now I usually use promise to solve the callback problem. Now, if you use node to connect to the database, you usually use createpool,. I also have articles about this. If you want, I can share it with you
.var http = require("http") var server = http.createServer(function(req,res){ console.log("jirengu") res.setHeader("Content-Type","text plain";"charset=gbk") res.write( <h1>jirengu<...
sincerely ask for advice: < hr > I want to use node as the background to build a video streaming server. The front end is similar to Youku VOD. It can record the playback node function, and load the progress bar at any point (starting from the c...
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var http = require("http") var server = http.createServer(function(req,res){ console.log("hello") console.log(2222) res.setHeader("Content-Type","text html","charset=gbk") res.write( <...
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adopt a reward of 10 yuan, 1045 Access denied for user root @ localhost (using password:NO) recently, when I was at the front end of my self-study, I came into contact with a little bit of database. This happened when I made a new connection on ...
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Please recommend the library reported by error monitoring at the front end, or post relevant codes the discovery written by myself is not comprehensive, unable to listen for resource errors, but can only listen for run-time errors. I don t know if th...
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this visual studio code has inexplicably linked more than 5,000 files after I built a project inexplicably, which may be related to GitHub. excuse me, how did this happen? how can I fix it? every time I open it, I feel so unhappy Thank you! ...
1. Execute npm install-g pm2 2.pm2 pm2 start app.js pm2 3.ln -s root myapp pm2 usr local bin still failed to solve the problem messed up for a long time because no soft connection was created. ln -s root node-v8.9.0-linux-x64 lib node_...
like this [array [xxx], array [xxx], array [xxx].] merge all xxx in array into one array [xxx.] ...