things Isolation Level
The thing isolation level is to resolve dirty reads, Phantom reads, non-repeatable reads
Dirty Read: Data that has not been determined to be committed is read by other things
Phantom Reading: The data on the select point of Time is different from the actual situation, which will add data
non-repeatable read: The same data is read by multiple thi
Open source JTA things that do not depend on the application server implement JOTM and Atomikos transactionsJotm That is, based on the Java Open Transaction Manager (Java Open Transaction Manager), the implementation of the JTA specification, can be run in a non-application server environment, Web container or standalone Java se environment, the official website address: http://jotm.objectweb.org/.Atomikos transactions Essentials It is a transac
Arduino consists of two main parts: the hardware part is a Arduino circuit board that can be used for circuit connection, and the other is the Arduino IDE, the program development environment in your computer. You just write the program code in the IDE, upload the program to the Arduino circuit board, the program will tell the Arduino board to do something. Download the Arduino IDE
Website Download Address: https://www.arduino.cc/en/Main/Software
The current version is Arduino 1.6.11, accordin
the same, so also made me now in the technology of this road to go so far, think back to have seen a lot of three, four of technical colleagues transformed to pure project management, years passed, do not know how now.
And then two, three years later, I'm still on the new architecture, unused middleware, open source technology ecstatic, hope to be used in the project and deepen some understanding of it, but I am based on business direction to do analysis, based on the feasibility of business to
Today, I am honored to go with the company's leaders to visit the 2012 China Shenzhen International Internet of Things Technology and application Expo, there are some gains in general.
1, realize that the future of hotels, villas, venues and even individual families will also usher in an intelligent day.
2, see, there is an intelligent temperature measurement system, like a watch as people wear as long as the temperature is not within the normal ran
What is a thingA thing is a sequence of operations that accesses a database, and the database application system accesses the database through a set of things. the proper execution of a thing makes a database transition from one state to another .Things must obey the acid principles established by ISO/IEC. Acid is an abbreviation for atomicity (atomicity), consistency (consistency), isolation (isolation), p
Failure will always occur, and no one it enterprise operations can rest assured. But we can do preventive measure, punches, trivial. In the daily work, to do pre-prediction prevention, the solution of emergency, after the analysis and summary.In order to improve operation and maintenance level and avoid risk failure, it is necessary to establish a good operation and maintenance system fundamentally. Operation and maintenance system is the foundation and core of operation and maintenance. Through
Tags: is nbsp start blank different article Oschina recover widthSometimes a system's data is placed in a different library. If a branch library commits successfully with a common thing, another branch library submission fails, This is not a successful or failed synchronization of two libraries. Can result in incomplete system data. MySQL has a syntax for dealing with distributed (XA) things in this case The XA start XID is used to start a XA thing wi
There are only two things in this world: their own affairs, others ' Affairs.There is a friend, at the end of each month, the unit has an early shift, need to get up 5:30. Every day, he will desperate to scold half a day. Yes, a lazy man, to get him up early, is inevitably painless and complaining. However, after his daughter went to high school, he got up 5:30 every day and stayed with his daughter for three years, declining once. After sending her d
To talk about the things that PHP inherits, my personal opinion, PHP inherits those things insights
On the internet often spread out the lowest end of the language, PHP is the one, once the University of Java, bi-set with Java, just out of training with Java I, in the initial work of 2, 3 years when the object of PHP is also quite opinion, always feel "nondescript", not to mention the view of JS. But these
To succeed, you only need to do two things well. Do things, tell people
If you don't have any skills that can attract people's attention, learn more. This is your future. You can use them in the treasure of knowledge in the whole world.
Then, do something that can be used out to make it cool, make it interesting, and spend time doing it without any scruples. Even if it is the least valuable thing you have
Simply say PHP optimizer those things that PHP optimizes those things
When we write programs, we always want to make our programs take up the least amount of resources, run faster, and have less code. We tend to lose a lot of things while pursuing them. Next I would like to talk about my understanding of PHP optimization. The goal of optimization is to get the f
Original article:Things I wish I 'd known when I was younger
Introduction
Things you want to know when you are young
As time passes, we have been gaining new knowledge, but these learning is often delayed when we need it. Many of my earlierLifeI only know what should be extremely useful, but they could have helped me avoid many mistakes and injuries in those years-most of the things I have impos
On the domestic Internet of Things Platform (v)--Wit cloud IoT Internet of things cloud service platform and intelligent hardware self-help development platformMa ZhiPlatform positioning
The Smart Cloud Platform is an open platform dedicated to the Internet of things and intelligent hardware cloud services. The platform provides the ability to define pro
Threejs Official website-How do I do local things (how to run things locally)The beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint Please keep this sentence: Sun Vulcan's Beautiful Life-this blog focuses on Agile development and mobile and IoT device research: IOS, Android, HTML5, Arduino, Pcdui
Threejs official website-How to run things locally (How to run things locally)
Threejs official website-How to run things locally (How to run things locally)
Beautiful Life of the sun and fire god (http://blog.csdn.net/opengl_es)
This article follows the "signature-non-commercial use-consistency" creation public agre
If there is a person in your life who wants to step on your feet, don't think life harmed you.Perhaps, there are 10 people who want to step on your feet, just your strength, so they don't have a chance to reach out. Do not complain that the world is the jungle, you will gradually find that it looks very cruel, but very fair. Weak, sometimes can be pity and pain, just because human beings also have morals and kindness.You can look up to morality and kindness, but don't rely on it. This world, in
the communication links. How to give full play to the advantages of enterprise IM portal, so that im generate greater value?What I am thinking now is the people, things, objects and knowledge that connect the enterprise.Connecting peopleThere are always a variety of requirements in the enterprise which business system should be used to satisfy. Such as1, release a training notice, detailed introduction of the content of the training2. Revelation of L
10 Things Every programmer shold know for their first Joby
James R. stoupSEP 17,200 7
Hindsight being what it is, here are some lessons I have learned since entering the ranks of professional programming.
0000-being liked is easy If you show up on time, dress decently, smile and don't act insane then at least some people will like you. in fact, getting your coworkers to like you is fairly easy. want to have a lot of friends? Have a bowl on candy on yo
To improve jQuery's performance, you need to do seven things well, and jquery should do seven things well.
Do seven things to help you improve jQuery's performance. Do you want to know which things?
1. Append Outside of Loops
Anything that involves DOM has a price. If you attach a large number of elements to the DOM, y
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