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  Understanding database, instance and schema in Oracle database

Oracle database is the most popular database system among enterprises. To start working on Oracle database, some concepts must be understood first. They include database, instance, schema and user etc. And among these concepts, some have different meanings from those in other database systems such as MS SQL, MySQL, DB2. On the web, there are already some good posts which explain different concepts such as Ask Tom's database vs instances, Difference between database vs user vs schema. In this pos...

   DIFFERENCE,DATABASE,ORACLE DATABASE,INSTANCE,SCHEMA,USER     2016-12-14 23:30:56

  HeartBleed: OpenBSD now starts to clean up OpenSSL

Since the disclosure of HeartBleed bug in OpenSSL, some arguments emerge around the safety of OpenSSL, the largest open source SSL/TLS library used by large number of servers, applications. Some people are even starting to create their own version of SSL library. This includes OpenBSD, a famous Unix like open source operating system. Just a few days after the HeartBleed bug, OpenBSD forked a new branch of OpenSSL and started to clean up the forked branch and plans to merge it to its own cod...

   HeartBleed,OpenBSD     2014-04-15 04:21:26

  Snipping Tool is moving on Windows 10

There is some recent change for a built-in tool on Windows 10 where the Snipping Tool is moving. Snipping Tool is a tool on Windows for taking screenshots and editing screenshots taken. But now it's moving to a new tool called Snip & Sketch which has enhanced features. Now if you try to launch Snipping Tool, you will notice there is a notification telling that the Snipping tool is moving to a new tool called Snip & Sketch. And you can click Try Snip & Sketch to launch the new tool. ...

   WINDOWS 10,SNIPPING TOOL,SNIP & SKETCH,SCREENSHOT     2019-11-03 02:30:53

  Gmail supports 10 GB attachment after integrating with Google Drive

Google today announced Gmail allows users to send attachment up to 10GB after integrating with Google Drive, the attachment size can be 400 times larger than traditional mail attachment size.Google also added another feature recently, it will pop up a separate window when writing new email. The integration of Gmail with Google Drive will introduce one Google Drive button at the bottom of the popup window, as a solution for sending large attachment.At the same time, because the attachment will b...

   Google Drive, Gmail,SkyDrive,attachment     2012-11-28 11:12:56

  How Cybersecurity Preparedness Can Minimize Downtime During Cyber-Attacks

According to statistics, the average cost of a data breach reached $4.88 million in 2024, marking the highest recorded average to date. Moreover, 68 percent of data breaches in 2024 involved a human element. Cyber-attacks are no longer rare events—they’re an everyday risk for businesses. When a business isn’t prepared, even a minor attack can lead to costly downtime, disrupt operations, and harm its reputation. The good news is that businesses can reduce these impacts with pro...

   CYBER SECURITY ,CYBER ATTACK     2024-11-14 02:38:42

  Tom Uglow from Google : 5 steps to innovation

Google has been known for its innovation In Google there is a "welfare": each employee can spare 20% of his/her time to do what he/she likes to do so that any idea has a chance to be turned into reality. Perhaps this freedom makes Google capable of introducing new products and new ideas continuously. Google China held a small discussion session in its office in Tsinghua Science Park recently, Google Creative Director Tom Uglow shared some experience and cases of Google in production and innovat...

   Innovation,Technology,Google     2012-10-10 20:00:47

  Amazon unveils 8.9" Kindle Fire HD

Amazon today unveiled 7 products of Kindle family, including the $69 new Kindle; Kindle Paperwhite WiFi/3G, priced at $119 / $179; 7-inch Kindle Fire regular edition/HD version, $159/$ 199; 8.9inch Kindle Fire HD with WiFi/4G Edition at $299 /$499. However, the Amazon phone did not show up. The 8.9-inch Kindle Fire HD is today's highlight, because it looks real similar to iPad. Kindle Fire HD has the following features: 1920 x 1200 resolution, 254PPI Texas Instruments OMAP 4470 proce...

   Amazon,Kindle Fire HD,tablet     2012-09-06 19:12:05

  User experience distance

Good user experience can narrow the gap between product and users, it can also improve the user efficiency and increase satisfaction and comfort of users. Here we talk about user experience distance with different examples: 1. Floating bubble layer When users need to delete one picture,they click on the "Delete" button, then the floating bubble layer appears to prompt the user to confirm the deletion, users only need to focus on the picture which reduces the visual burden, and also no need to mo...

   User experience, Design,Detail     2012-12-20 13:20:16

  Twitter is the winner of US election

Yesterday, the final result of the U.S. election was that Obama defeated Romney and he was re-election as President of the United States of America, Later he made a victory speech. While in the Internet world, the real winner is not Obama, but Twitter. Why? Because there was no downtime for Twitter yesterday.On election day, There were a total of 31 million election-related Tweets posted, In peak period, there were 327,452 tweets posted per minute,  the peak record was 874,560, about 15,107...

   Twitter, US election,Fail whale     2012-11-08 10:55:38

  Handy PHP functions should be in your toolkit

When developing projects, there are always some common work should be accomplished, for example, encrption/decryption, get IP. As a PHP developer, you should have a list of the handy functions in your toolkit so that you can pick up in every project you work on. Here is a summary of some handy PHP functions. 1. PHP encryption/decryption Encryption/decryption can be used when storing user confidential information such as passwords. Below function uses base64 and MD5 to accomplish encryption/decry...

   PHP,function,real IP,SQL injection     2014-12-06 08:46:08

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