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Questions about determining whether a user is online !!! I have been hearing about how to determine whether a user is online. I have no idea. I 'd like to ask you for help today !! Thank you !! Reply to discussion (solution) Record the session to the database, and mark the user's ID number. to determine whether the user is online, check whether the session info

With the increasing scale and demand of online game practitioners, more and more friends have entered the online game development field, which leads to a rapid increase in the demand for online game development technologies in the market. Currently, the online gaming industry is short for "professional" developers with

Label:Business 0 Impact! How to skillfully use MySQL traditional replication technology in online environmentThis article I will not describe how to deploy a MySQL replication environment or keepalived+ dual-host environment, because this kind of installation and build the article has a lot of people are also very familiar with. In this article, I mainly introduce how MySQL replication technology is architected in the

Now because everyone's pace of life faster, online shopping more and more people, the internet shopping behavior is more and more frequent. What clothing, tobacco, alcohol, mobile phones, kitchenware, pet food and so on, in addition to some have to personally experience the ability to sell things, almost nothing on the Internet to buy. And online shopping also often have some unexpected harvest, let people

https://www.freehao123.com/web-ftp/Often have friends in the use of some space without a file manager, there is no way to extract the uploaded file compression package, and if you do not upload the compressed package, upload folder directly, it takes too much time. There are also friends who want to turn space into a file store, which requires an online file manager with enough functionality and powerful enough.Online Web File Manager is very much, es

Online solved yesterday's problem: the results of the table changed, as follows: CREATE table Tb_user (--User table N_userid Number (5) Not NULL--User ID V_nickname VARCHAR2 (Ten) not NULL,--Nickname V_pwd VARCHAR2 (Ten) not NULL,--Password V_truename VARCHAR2 (20),--Name Primary Key (N_userid) ) CREATE TABLE Tb_onlineuser (--Online users N_onlineuserid Number (5) Not NULL,--

Http://blog.csdn.net/sodme/archive/2004/12/12/213995.aspx Similar to QQ games, millions of concurrently online servers are added to favoritesAuthor: sodimethyl this Article Source: http://blog.csdn.net/sodmeCopyright Disclaimer: This article can be reproduced without the consent of the author. However, it is not necessary to retain the copyright, author, and source information of the first two lines of the article. In the past few days, QQ games final

Online | Chinese Digital publishing dream to get people watch to redeem an acquired start-up company 5 years later He became a pioneering star during his school years, get 10 million yuan venture capital, 24 years old to become the company president; then suffered the dotcom bubble of the winter, the money burned out by working abroad to support their own company, until the encounter "Bole", even with the company to collect the account; After a few ye

The survey shows that people's satisfaction with online shopping is not too high both in China and abroad. According to a Jupiter Communications survey, only 41% of users are satisfied with the customer services they have experienced. Online Shopping in China is worse, the first online shopping test in China released this year shows that 78% of websites are not f

The webmaster summarized several prominent problems. No matter whether the webmaster joins the ranks of the webmaster to make money or to make interest, my opinion is that no matter what the webmaster does, there must be one thing missing, it is a serious spirit. You can read the news that a farmer's brother often reports that the earth planes are flying on the sky for their hobbies. Our webmasters should share this kind of earnest spirit. If you don't have one, I suggest you go to the US movie

Changing the size and quantity of online redo log files sometimes optimizes the database. You can add or delete online redo log groups or log members in the primary database without affecting the standby database. Similarly, you Changing the size and quantity of online redo log files sometimes optimizes the database. You can add or delete