advantages and disadvantages of dialysis

1. Advantages: Open Source Free quick performance [program development fast, running fast, technology itself learning fast]Plug-ins are rich, online solutions are plentiful, and there is a huge open source community available to help.High-efficiency and cross-platform image processing object-oriented[In Php4,php5, the object-oriented aspect has been greatly improved, and PHP can be used to develop large commercial programs. ]PHP performance is strong.

Advantages and disadvantages of multi-process programming from original sourceMulti-process Benefits:Each process is independent of each other, does not affect the stability of the main program, the child process crashes does not matter, by increasing the CPU, you can easily expand performance, can minimize the impact of line Cheng/unlock, greatly improve performance, even if the thread running module algor

, suggest not to use "this more can prove its disadvantage!" 2. From the disadvantages we can associate with the exception of an HTML commonly used in the label nofollow, since the use of the IFRAME tag can make spiders difficult to crawl, then we can put some of our site needs to users, and do not need to give the search engine to see the information used Ifram tag to design , so that we can make Ifram treasure, and there is the role of the code sli

-level code porting possible. The C language supports structured programming, which means that the C program is written as a collection of discrete function calls (calls) that run from top to bottom rather than using the Goto statement to control the process like a single integrated block of code. Therefore, the C program is much simpler than the integrated Fortran and COBOL "Hollow Powder Code" code. In fact, C still has a goto statement, but its functionality is limited and is recommended onl

Tags: pros and cons database MySQL record informationThe advantages of MongoDB compared to relational databases:① Weak consistency (eventually consistent), to ensure the user's access speed:For example, in a traditional relational database, a count type of operation locks the dataset so that the exact value in the "current" case can be guaranteed. This is important in some cases, such as checking account information through ATM, but for Wordnik, the d

Label:Transferred from: http://blog.sina.com.cn/s/blog_5a8b8eb80100sg84.html First, the concept of the index An index is a way to speed up the retrieval of data in a table. The index of the database is similar to the index of the book. In books, the index allows users to quickly find the information they need without having to scroll through the entire book. In the database, the index also allows the database program to quickly locate the data in the table without having to scan the entire datab

Tomorrow is a Eve, today at home free, want to focus on the characteristics of CQRS architecture and compared to the traditional architecture of the advantages and disadvantages of analysis. First of all, I wish you monkey Happy New Year, good luck, health!In recent years, in the field of DDD, we have often seen the concept of CQRS architecture. I personally wrote a Enode framework specifically for implemen

App promotion is almost a common problem for every mobile app company, and the app wants to promote it. To promote better, quantitative promotion effect, real-time optimization of the delivery strategy, you need to have channel statistics support. The following summarizes the advantages and disadvantages of channel statistics, can be compared to select suitable for the company's channel statistics program.T

Advantages and disadvantages of using session variables in ASP (Author: Green Apple Computer Studio) Many people use session variables to develop ASP (Active Server Pages). These variables are very similar to variables that are common in any programming language and have the same advantages and drawbacks as common variables. Any command requires run time and stor

"Abstract" Linux User Configuration device-driven development: Not all device drivers are written in the kernel, and in some cases, writing drivers in user space can better address the problems encountered. This paper analyzes the advantages and disadvantages of user-driven drivers.1. Advantages of User space driver1, can be linked with the entire C library.2, in

The advantages of Ajax The advantages that Ajax brings to us are basically deeply appreciated, and here I just briefly say a few things: 1, the biggest point is the page does not refresh, in the page with the server communication, to the user experience is very good. 2, the use of asynchronous way to communicate with the server, do not need to interrupt the user's operation, with more rapid response capa

performance requirements are high, programmers may be required to replace them with other similar algorithms to ensure performance is preferred, but in some cases, replacing recursion with other algorithms may not necessarily improve the performance of the algorithm, but recursion is the best algorithm (which generally refers to fewer recursive hierarchies).In short, the use of recursion has its advantages, there are

This blog is reproduced from a blog post, introduced Gan (generative adversarial Networks) that is the principle of generative warfare network and Gan's advantages and disadvantages of analysis and the development of GAN Network research. Here is the content. 1. Build Model 1.1 Overview Machine learning methods can be divided into generation methods (generative approach) and discriminant methods (discrimin

these kinds of frameworks, we usually use a lot of ways to create the XMLHttpRequest object ourselves, this way is more flexible than the previous several frameworks. In addition, here also mention aspnet2.0 of the asynchronous callback interface, it and Ajax can also achieve local no refresh, but its implementation is actually based on the XMLHttpRequest object, but also only support IE, of course, this is a Microsoft competition strategy. 9.ajax Application Examples The above content is rep

advantages and disadvantages of sequential tables and linked list storage 1. Sequential table Storage Principle: Sequential table storage is to put data elements into a contiguous memory storage space, access efficiency, fast. But you can't increase the length dynamically. Advantages: Efficient access, direct storage via subscript Cons: 1. Insertions and dele

Label: Why do you want to create an index? This is because creating an index can greatly improve the performance of the system.First, by creating a unique index. To ensure that each row of unique data is in a database table.Second, high-speed data retrieval can be greatly accelerated, which is the most basic reason to create an index.Third. This is particularly relevant in terms of achieving the data's textual integrity.The same can significantly reduce the time of grouping and sorting in querie

provide services for residential users. The ONU optical network unit is set on the roadside, that is, the electrical signals from ONU are sent to users, generally, videos are transmitted over coaxial cables and telephones are transmitted over twisted pair wires. The ONU of FTTB is located in the distribution box of the building. It is mainly used in integrated buildings, remote medical care, distance education, and large entertainment venues to serve large and medium-sized enterprises and busin

VolumeDisadvantages:1. IE8 does not support2. Attribute requires writing browser vendor prefix3. May interfere with other transform effects4. There are situations where text or element boundaries render blurryIv. table Cells{display:table;} {display:table-cell; vertical-align:Middle;}Advantages:1. Highly variable2. Content overflow will open the parent element.3. Cross-browser compatibility is good.Disadvantages:Additional HTML markup requiredFive,

project, cost-effective is much higher than F5, commercial first choice! But in general this phase of the relevant talent to keep up with the business, so the purchase of commercial load balance has become the only way. The ability and quantity of talent is also increased, at this time, regardless of the development of customized products for their own, and reduce the cost of open source LVs, has become the first choice, then LVS will become the mainstream. The third stage: The Network Ser

Commonly used EJB, RMI, Web Service, as well as Hessian, NIO, and so on, their advantages and disadvantages compared to the following: 1:ejb Advantages: Good scalability, strong security, support distributed transaction processing. Disadvantage: Can not cross language, configuration is relatively complex, different Java container is difficult to do seamless