what pros and cons of cloning

distribution that's right for your desktop, and if you don't want to customize anything yourself, and you don't want to waste too much time on your system, it's easy, You choose according to your hobby in Ubuntu, Kubuntu and Xubuntu, the difference of the three is only the desktop program is different.If you need a server system, and you are very tired of the various Linux configuration, just want a more stable server system, then your best choice is CentOS, after the installation, after a simp

change the value of the other fields in the record, the value of the DateTime field does not change unless you manually change it. Timestamp1. Take up 4 bytes of 2. Null values are allowed, but values cannot be customized, so null values are meaningless.3. The timestamp value cannot be earlier than 1970 or later than 2037. This indicates that a date, such as ' 1968-01-01 ', is valid for a datetime or date value but is not valid for the timestamp value, and is converted to 0 if assigned to such

and cons. In the "Select" section, I'll talk about how to choose the framework; in the "Timing" section, I'll discuss scenarios where you should consider application frameworks and scenarios where you should look for alternatives; and finally, in the "Pros and cons" part, I'll discuss when you decide to adopt a framework, All the advantages and disadvantages of

When your Mac computer doesn't need to be used for the time being, will you turn it off, or sleep, or just keep on running? What are the pros and cons of various options, let's analyze each one. 　　Let the Mac go to sleep: For most Mac users, sleep tends to be more biased, because sleep can easily and quickly restore the work process, and sleep is more capable

other. This allows multiple processes to access the same physical memory page directly. Like accessing your own private space (but in essence not private but shared). Therefore, this inter-process communication method is the quickest way to realize communication among the processes in the same computer system. And its limitations lie in this. Processes that share memory must coexist with the same computer system. There is physical memory that can be shared before the line.Three ways to characte

) and varchar (1) The definition of two, what is the difference? Although both can only be used to hold a single character, varchar consumes a storage location more than char. This is mainly because when you use the varchar data type, you use more than 1 bytes to store the length information. This administrative overhead of the char character type is not. ---------------------------------Summary--------------------------------------------- ----------

A few days ago, a classmate called me to choose the pros and cons of domestic enterprises and foreign companies, it is ridiculous that he is learning machinery; Since and I am not in an industry at all, so I just said that our IT foreign trade advantages and disadvantages, after all, interlacing as Foster. First of all, I am the company is the U.S. Top 500 software industry (non-Internet), the absolute lead

effect is poor Core animation requires professional production, modified to be more troublesome CPU resources are relatively large, the page contains Flash animation when the page response is slow Apple's latest support, resulting in a drop in usage (2) HTML5 advantages recommended by the web, there is a unified network standard cross-platform, multi-device support seo friendly, use search engine crawl and search easy game development better interactivity audio and video

the requirements.Does not have the built-in column number Ajax,route and other functions to the core package, but the plug-in way to load.The Mixins feature is supported in component development.Different points:React relies on the virtual DOM, and Vue.js uses a DOM template. The virtual DOM used by react will perform a dirty check on the rendered results.Vue.js provides instructions, filters, and so on in the template, which makes it easy and quick to manipulate the DOM.How do I use vue.js?1.

the blacklist.Explain the above URL, "posts": it is generally referred to as the controller, which determines which processing file to load; "index": it is generally called an action, which determines what to do. So/posts/index/as the name implies is posts homepage. If you need to pass parameters later, you can add them directly behind the action.As in the following url:http://www.nostop.org/index.php/posts/category/1/. Lists all content under the ca

(that is, the UI thread) and then posts the action object into the handler. In handler, it wraps the action object passed in as a message (the callback of the message is the action) and then puts it into the message loop of the UI thread. When handler processes the message again, there is a branch (the one that is not explained) that is set for it to call the runnable run method directly. At this point, it has been routed to the UI thread, so we can update the UI with no worries.As seen earlier

the exact same statement, the next execution of SQL will be compiled again. This behavior is called "recompile (RECOMPILE)". The compilation and recompilation of the execution plan are all resources consuming. If the execution plan can be reused, then SQL Server does not need to perform the above process to speed up the execution of instructions, and many of the statement tuning articles refer to the database reuse execution plan that means pros a

In this article we will look at what is python threads and processes。 Learn about Python threads and processes, and learn about python threads and processes the Differenceand merits. We have introduced multi-process and multi-threading, which are the two most common ways to achieve multitasking. Now, let's discuss the pros and cons of both approaches. First, to