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  Do You Make These 5 Database Design Mistakes?

Look, everyone makes mistakes. It’s true. But not all of us have the chance to make mistakes that end up costing millions of dollars in hardware and production support costs. Any one of the following five mistakes listed below will add additional costs to your company. It’s guaranteed. The costs could be hardware related (extra disk space, network bandwidth), which tend to add up quickly. The costs are also support related (bad performance, database re-design, report cre...

   Database design,Mistake,Advice,Data type,Compatibility     2012-01-03 11:25:13

  String.length() vs String.getBytes().length in Java

In Java, String.length() is to return the number of characters in the string, while String.getBytes().length is to return the number of bytes to represent the string with the specified encoding. By default, the encoding will be the value of system property file.encoding, the encoding name can be set manually as well by calling System.setProperty("file.encoding", "XXX"). For example, UTF-8, Cp1252. In many cases, String.length() will return the same value as String.getBytes().length, but in some ...

   Java,UTF8,String,Encoding,Sample     2015-04-01 22:22:23

  Speed Hashing

A given hash uniquely represents a file, or any arbitrary collection of data. At least in theory. This is a 128-bit MD5 hash you're looking at above, so it can represent at most 2128 unique items, or 340 trillion trillion trillion. In reality the usable space is substantially less; you can start seeing significant collisions once you've filled half the space, but half of an impossibly large number is still impossibly large. Back in 2005, I wondered about the difference between a checksum and...

   Speed hashing,Security,MD5     2012-04-07 10:35:15

  As A Hottest Job Ever, What Should You Know As A Front End Web Developer?

The front end web developers are the openers for the visitors to visit the web page. It is also known as the client-side development, works predominantly with HTML, CSS, and Javascript. The tools and techniques are the important players of the front end web development. The developer must be aware of the updation of web technologies.The scope is evergreen with this technology as every company or business needs a website to showcase their profile. There are many objectives must be measured while ...

   FRONT END DEVELOPER,WEB DEVELOPERS,SOFTWARE DEVELOPERS,TOP SOFTWARE COMPANIES     2019-08-12 05:36:28

  Live in Beijing and Thinking about Starting a Tech Company? Read. This. Post. Now.

The Disrupt Beijing Hackathon starts in a little more than 24 hours, and we’ve been working hard over the last few days to make it even more of a no-brainer for local Beijing developers to attend.In addition to the chance to be the next GroupMeor win valuable prizes, we have decided to give all Hackathon attendees who complete a hack and present in the 24-hour period free tickets to the Disrupt conference Monday and Tuesday. That’s a $1,000-plus value for s...

   Startup,Beijing,TechCrunch,Disrupt,2011     2011-10-28 12:41:43

  How Google Utilizes Big Data for SERP

Google is an expert when it comes to big data. This is evident in their development of various techniques and open source tools which are used by the big data industry professionals. These tools and technique allow Google to sift through millions of different websites and enormous amounts of data in order to provide users with correct answers in a matter of milliseconds. But how does Google accomplish that with such precision? To answer that, we need to focus on the complex activities that go o...

   GOOGLE,BIG DATA     2017-05-31 16:13:03

  Kubernetes Authentication & Authorization 101

If we want to build a system with user modules, Authentication and Authorization are something that we can never ignore, though they could be fuzzy to understand. Authentication (from Greek: αὐθεντικÏŒς authentikos, “real, genuine”, from αὐθέντης authentes, “author”) is the act of proving an assertion, such as the identity of a computer s...

   RBAC,AUTHORIZATION,AUTHENTICATION,KUBERNETES     2021-06-05 23:19:18

  The Failure of Passive Recruiting: Recruiters

This is an actual conversation I had with a recruiter:Phone rings and I pick it upHim: Hi, is Paul there?Aaron: May I ask who is calling?Him: I have a technical question. Aaron: Ok, what is it?Him: Are you technical?Aaron: Yes. Who is this?Him: Who are you?Aaron: Are you a recruiter?Him: Yes and…Aaron: Great, send us your resumes, if we like what you send over, we’ll let you know if we want to meet with the candidates, other tha...

   Recruiter,HR,Recruitment,Failure,Hire     2011-10-26 06:59:33

  Build your own internet search engine - Part 2

After having started to build my own internet search engine as described in a previous blog post, I now have read some papers and books about web search engine architecture and information retrieval to complete my hobby project. Here is a list of papers and books that I highly recommend to anybody who is interested in this topic: 1. Google: data structures and algorithms by Petteri Huuhka 2. The Anatomy of a Large-Scale Hypertextual Web Search Engine by the Google founde...

   Search engine,Paper,Database,Data structure     2011-12-22 08:25:59

  How to Increase your Instagram Followers

Instagram is a fantastic network that allows its users to share photos and it’s a lot of fun especially when people are following you. If you are a new Instagram user, there are high chances that you don’t have many followers. The following are some simple techniques you can use to get followers on Instagram: 1.     Ensure that your account has a clear focus Pick a clear focus for your Instagram account. This is because if you intend to showcase your best photogra...

       2016-02-04 06:04:46

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