SEARCH KEYWORD -- System programming


  Understanding How is Data Stored in RDBMS

We all know that DBMS (database management system) is used to store (a massive amount of) data. However, have you ever wondered how is data stored in DBMS? In this post, we will focus on data storage in RDBMS, the most traditional relational database systems. Physical Storage Data can be stored in many different kinds of medium or devices, from the fastest but costy registers to the slow but cheap hard drives, or even magnetic tapes. Nowadays, IaaS providers such as AWS...

   RDBMS,DATABASE     2019-02-04 09:25:36

  Oracle CEO Mark Hurd : IBM PureSystem is far behind Oracle

Oracle CEO Mark Hurd had an interview with Chinese media in San Francisco on 19th April. Mark Hurd first introduced different levels of Oracle's overall strategy: 1) the product must achieve best among similar products; 2) system open, vertical integration to provide customers with maximum performance; 3) Industry specific solutions; 4) give users the right to choose and the integration of the cloud environment (private cloud, public cloud, mixed cloud). In addition, Mark Hurd share his own...

   Oracle,IBM,Pureystem,Hardware/Software     2012-04-19 07:17:24

  New Unreal Engine 5 and Nvidia Technology in Black Myth: Wukong

In this article, we explore the cutting-edge Unreal Engine 5 and Nvidia GPU technologies used in the highly anticipated AAA game Black Myth: Wukong this year to enhance its game graphical quality. Our insights are based on an interview article of the technical lead of Game Science Interactive Technology, Geekerwan's experimental analysis, and Nvidia's official Black Myth: Wukong showcase featuring the RTX 40xx series. As a software engineer, my perspective may differ from that of a game develop...

       2024-08-24 09:32:55

  Configure a PHP web server on CentOS

Are you used to use cPanel or Plesk on VPS for your PHP website management? If for some reason you don't want to use them? What can you do? How do you maintain your website? How do you access Emails, use FTP to upload files or use phpMyAdmin to manage your databases? You may need to configure all these services yourself on a VPS without cPanel or Plesk or other similar apps.But to configure all these services on a Linux server is not an easy job. You may spend many nights but still fail to get s...

   Cron,Linux,CentOS,Email,FTP,MySQL     2012-07-08 06:01:56

  Welcome To The Latest Technology Of This ERA

In the era of 70’s, Hollywood showed us a glimpse of gadgets that we would be having in the 21st century. Here we are! Driving cars without a driver, having one phone in our wrists and another one in our pockets, and what not!? The promises that Hollywood made are eventually coming true. Here is a list of some latest technologies that we have never thought of if we go back to the 70’s and now they are so common. Waterproof Phone Now-a-days people are so addicted to phones that they ...

   GENERATOR,RESEARCH,APPS,TECHNOLOGY,ASACITATION.,HOLLYWOOD     2017-07-08 10:15:25

  Python Process Protection Watchdog

Project Design Purpose: During participating the cyber exercise as red team member, we found that the injected malware or attack launching program can easy be stopped by the blue team or defense program / mechanisms via killing the process / deleting the file. To address this, our project aims to develop a robust watchdog program designed to bind to target programs, diligently monitor their execution states, and ensure uninterrupted functionality. Continuous Monitoring: Establish a vigilant wa...

       2024-09-14 11:09:14

  JavaScript interview questions

This post will cover the JavaScript questions I have encountered and have seen during my programming career. They will mainly focus on vanilla JavaScript though there are lots of excellent frameworks out there and many people are using them in their daily work. this keyword this keyword is an very important but easy to confuse concept in JavaScript since it is always referring to the calling object of the function. 1. What will be the output of below code snippet? function User(name) { this....

   JAVASCRIPT,ALGORITHM,THIS,CLOSURE     2019-03-09 07:05:46

  One Way to Quickly Locate SQL with High CPU Usage in MySQL

When the CPU usage of a MySQL database rises abnormally, it's necessary to quickly identify the problematic SQL statements. In this post, we try to provide one way to achieve this.  Below are the actual steps. 1. Use the top command to find the threads with the highest CPU usage in the MySQL process. # Find the MySQL process ID ps -ef | grep mysql # Use the process ID to find the thread IDs with the highest CPU usage: top -H -p In top, press P to sort by CPU usage. Note the thread ID, fo...

   MYSQL,DEBUG,HIGH CPU,SLOW QUERY     2024-08-01 21:25:48

  JSP connect MySQL

To connect MySQL with Java Server Page(JSP). Some steps should be followed:Step 1: Download MySQL JDBC connector driver from the Internet. URL:  http://dev.mysql.com/downloads/connector/j/Step 2: Put the jar file downloaded in Step 1 in the Tomcat common lib folder and add this jar file to the CLASSPATH so that the JSP page can find the specified class.Step 3: Create the JSP page with MySQL connection : Example is shown below:        <% String driver="com.mysql.j...

   MySQL,JSP,Connection,Driver,Download     2011-05-11 10:04:57

  Alibaba launches NASA program

On March 9, the China E-Commerce giant Alibaba held its first internal tech conference in its headquarter Hangzhou. During this conference, Jack Ma, Alibaba founder, announced a new program code named "NASA" which aims to build up technologies serving 2 billion people in next 20 years by forming independent and powerful R&D department. On March 13, Alibaba formerly announced this program to the public. The research area of this program would include machine learning, chi...

   ALIBABA,NASA,CHINA,NEWS     2017-03-13 11:32:22

RECENT