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  MySQL index optimization

Problem description: We need to access a very big table which has 40 million records. In the table, id is the primary key and program_id is indexed. When executing a select query: select * from program_access_log where program_id between 1 and 4000 The above query executes very slowly, we thought it was because there were too many records in the table. So we added id in the where condition to limit the search so that each time only half a million records would be read. select * fr...

   MySQL,Index search, Partition     2012-12-26 13:14:20

  5 tips for selling your software company for maximum value

From the moment you start your software company, you should be developing an exit strategy. While you might have no plans to sell your business, things can go wrong, and you can find yourself in a position with no other option. In this case, having a plan to go to will make the entire process easier. If you do plan on selling, you should be constantly improving your exit strategy as your business evolves in order to ensure you sell your company for maximum value. Selling a software company can ...

   TIPS,BUSINESS,SELLING,SOFTWARE BUSINESS     2017-11-14 03:44:52

  Understand JavaScript prototype

For an front end programming language like JavaScript, if we want to understand its OOP feature, we need to understand its objects, prototype chain, execution context, closure and this keyword in deep. If you have a good understanding on these concepts, you should be confident that you can handle this language well. The inheritance in JavaScript is not class inheritance like Java, but it adopts another mechanism-- prototype inheritance. The key to prototype inheritance is the prototype chain mec...

   JavaScript, prototype, __proto__     2013-02-02 02:34:09

  Revolutionize Your Event Planning with Interactive Presentation Templates

Making a plan for a successful event requires a lot more than just booking a place and sending out invitations. To truly catch your audience’s heart and ensure a memorable experience, you need to think outside of old-school presentations. One effective way to uplift your event is by using interactive elements in the presentation.  The Power of Interactive Presentations Such presentations are made to engage and involve the crowd actively. They won’t just be presenting info passiv...

   EVENT PLANNING     2024-08-29 01:23:53

  Everything you need to know about what happened at Apple’s Special Event 2019

Apple’s special event that was announced in mid-November is finally over. The company held a presentation event in New York City where it highlighted the best apps and games of 2019 with no new software or hardware announcements at all.   On the event, five different nominations were announced: Apple’s chosen favourite apps, top free apps, top paid apps, top free games, and top paid games for 2019. Usual keynotes from Apple The tech industry is pretty accustomed to Apple’s...

   APPLE,EVENTS     2019-12-04 05:50:15

  Origin of Windows blue screen

Many of you from old ages might see the classical blue Windows blue screen before.Do you still remember the most famous Windows blue screen incident during a presentation of a Windows 98 beta by Bill Gates at COMDEX on April 20 1998. But do you know the history of blue screen? John Vert, an ex-Windoes NT kernel guy, shared the story on Quora.  Back in 1991 John Vert wrote the original code for Windows NT 3.1 that put the video screen back into text mode and the routines to put text on it (a...

   Windows blue screen,History     2013-07-24 09:25:16

  Welcome the new Google logo

Google today changed their logo, the new logo adopts the flat design with a lighter color scheme. Apart from these, there are no major changes on the font style, character color etc. Old logo New logo Along with the new logo, Google also released a new navigation menu that sits next to the Share and account info. The launcher, which looks just like the app launcher on Chrome OS, brings up an App grid with your favorite Google services. Actually, Google wanted to replace the top black navigati...

   Google logo,Chrome OS,App menu     2013-09-19 23:06:36

  Integer overflow

You may be familiar with integer overflow, but what you may not be familiar with is how gcc handles signed integer overflow. First let's look at the standard, for unsigned integer, the standard says : A computation involving unsigned operands can never overflow, because a result that cannot be represented by the resulting unsigned integer type is reduced modulo the number that is one greater than the largest value that can be represented by the resulting type. In other words, unsigned integer ov...

   Integer overflow,gcc,Linux     2012-10-20 13:33:10

  Why Use Java?

 Java was developed by Sun Micro-systems back in 1995 to function as high level programming language and serve as a computing platform. This gets regularly updated with new features and better compatibility. The latest version is Java SE 8.0 which released in 2014, March. Java has gained immense popularity while there have been various platforms to match up with the Java configurations like Java SE for Macintosh, Windows and UNIX, Java ME for Mobile Applications and Java EE for Enterpr...

   JAVA APPLICATION DEVELOPMENT,JAVA WEB DEVELOPMENT,JAVA OUTSOURCING COMPANY     2018-07-06 00:05:31

  Beauty of front end--List of front end tools used by GitHub

I did this summarization when I added Lirate_CoffeeScript support for GitHub-Linguist, i.e how does GitHub do Marjdown render and code highlight in its front end. Lots of font end tools used by GitHub are open sourced. They are: 1. HTML/CSS/JavaScript 1.1 HTML template GitHub markup and template styleguide : https://github.com/styleguide/templates 1.2 Style and CSS GitHub uses replacement of CSS: SCSS：https://github.com/nex3/sass KSS：https://github.com/kneath/kss GitHub CSS styleguide ...

   GitHub, front end,Tool     2013-03-07 03:46:42

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