cdb meaning

Call and apply the approximate use of the same, a simple look at the following example:We can call () and apply () as a method of an object, calling the function indirectly in the form of a calling method.That is, the method is the original method, but the parameter is the parameter of the object contained in call.The first parameter of the call function and the Apply method is the object to pass to the current object, and this inside the function. The arguments that follow are all arguments pas

The meaning of the four matching characters % indicates zero or multiple arbitrary characters. It indicates any character in the specified range []. Any single character [^] is not in the specified range. the character string must be enclosed in quotation marks, for example, the following example: LIKEBR % returns any string starting with BR. LIKEBr % returns The meaning of the four matching characters % i

Meaning: the transaction must have a very clear start and end point. Each data operation statement in SQL Server, such as SELECT, INSERT, UPDATE, and DELETE, is part of an implicit transaction. Even if there is only one statement, the system regards this statement as a transaction, either to execute all statements or to execute nothing. After the transaction starts, the firm Meaning: A transaction must have

From:http://www.jb51.net/article/71532.htm In JavaScript, Void is an operator that specifies that an expression is evaluated but does not return a value. I'd like to use Ajax for all the usual code like this: The code is as follows: But what is the meaning of void (0) here? The void operator uses the following format: 1. javascript:void (expression) 2. Javascript:void expression Expression is a standard of Javascript to evaluate. Parentheses on the o

Description of the. classpath file in the Eclipse project:The following is the content of A. classpath file: Note:1. Meaning: Path of the source code of the project -- under the SRC file of the current project path2. Meaning: The External jar package to be applied in this project, the specific path is G:/java_ocr/Asprise-OCR-Java-Windows_XP_32bit-4.0/aspriseocr. Jar here the absolute path is usedNote: Do

head before he had time to dry his urine. Wei Zhen, a Chinese coowner of Guan Yun, finally lost in the hands of Lu Meng, an unknown minor. Liu Xuande, the hero of the world, has been planted in Lu Xun, a white-faced scholar. It is also mighty, and its death is also wrong. Ouyang Xiu's "Ling Guan Chuan preface" said: Therefore, Fang Qisheng is also a hero of the world, and cannot compete with it; and its decline is also, the death of dozens of moles, and the death of the country, smile for the w

To understand the backlog argument, we must realize, a given listening socket, the kernel maintains the queues:To understand the meaning of the backlog parameter, we must understand that for a listening socket,kernel maintainer two queues:1.An Incomplete connection queue, which contains an entry for each SYN that have arrived from a client for which the server Is awaiting completion of the TCP Three-way handshake. These sockets is in the SYN_RCVD stat

Summary: When we write a program, it is always unavoidable to make mistakes, no matter how cautious. These errors often confuse the PHP compiler. If developers are unable to understand the meaning of compiler error messages, they are not only useless, but often frustrating. When we write a program, it is always inevitable to err on the wrong way, no matter how cautious. These errors often confuse the PHP compiler. If developers are unable to understa

Most of the time, I think, what is the purpose of human life? For fame and fortune? For life? To pursue? For responsibility? Or is it just for simplicity? This problem may cause a lot of questions. You may have been living for more than 10 years, and even have been living for decades, but you do not know what your life is. Sometimes I think it is a good thing to read more books. Sometimes I think it may not be a bad thing to read less books. Many people have low knowledge and knowledge. They th

Good article not only to recommend, but also to favorites, the original from: http://www.cnblogs.com/CoreCaiNiao/archive/2011/06/19/2084651.html To tell the truth, the word "Div + CSS" does not know how many people are harmed. Maybe the author's intention is correct, but the followers have misinterpreted its meaning in terms of performance, the whole page should be a combination of Div + CSS files. In this way, there is no visual impact, because the

Profound analysis of void and void pointer meaning, void pointer ParsingRules for using the void Keyword:1. If the function does not return a value, the void type should be declared;2. If the function has no parameters, the void parameter should be declared;3. If the function parameter can be of any type pointer, the parameter should be declared as void *;4. void cannot represent a real variable;Void represents an abstraction. All the variables in the

I know from the two answers, from the actual meaning and linguistics point of view to tell you how to understand the PR, very concise, this understanding is very good, will solve the novice just see the word PR (pull request) confusion. Practical Significance:There is a warehouse, called Repo A. If you want to contribute to the code, first fork this repo, so in your GitHub account has a repo A2,. Then you work under this A2, Commit,push and so on. The

2016 Summer vacation Multi-school Union---Another Meaningproblem Descriptionas is known to all, in many cases, a word has both meanings. Such as "hehe", which not only means "hehe", but also means "excuse me".Today,?? is chating with Meizi online, Meizi sends a sentence a to??. ?? is so smart and he knows the word B in the sentence have both meanings. He wants to know how many kinds of meanings meizi can express.Inputthe first line of the input gives the number of test cases T; T test Cases foll

Boulevard to Jane--the fine meaning of programming--ImpressionsToday read greatlypraised "Avenue to Jane", in fact, this is our Java teacher, but also the department of Software Engineering, Wang teacher recommended us to read, just at the beginning he let us read this also to write the reading book (in fact, mainly to write the book) My heart is very resistant. However, there are tasks that must be done, whether you like it or not. However, since it

Pointers are really easy to understand, and others are not as magical and difficult as everyone imagined.first, the meaning of the pointer: The pointer is actually a variable, it does not hold the data, but the data in memory address. Of course the pointer can also hold the address of the function (method), which will be mentioned later. The key for declaring a pointer is the * number, and the key to the address is . Second, pointer variable:Example 1

Awk in the meaning of NF and nr, in fact you already know the meaning of NF and nr, NF is a text file in a row (a record) of the number of fields, NR represents the text file of the number of rows (records). It is often used in programming, especially when it comes to data processing. It is recommended that you look at the information about awk programming, which is a very powerful tool.Look at an example:

apps. That's because, for them, that's what it means to write code and what they want to do with code. The problem, however, is that they don't know how to express their ideas correctly. So we can't just look at the surface meaning of language. Understanding the true meaning of the lines is also one of our work as educators. I remember a pastor who said a few years ago that even in a dilemma, we should tel

What is the meaning of being alive? Do you feel bored alive? Why do you want to live?Recently saw Nolan's Batman trilogy, feeling very much. Bruce as a rich second generation, witnessed the death of the parents, but also helpless to the dark social situation, the future is very lost to him, in order to find ways to fight criminals, volunteer and prisoners live together, experience their lives, and to the Shadow Warrior Alliance hone their will, eventu

Q:Like what:[Email protected] ~]# Ps-ef | grep apachejetspeedRoot 18887 18828 0 08:09 pts/0 00:00:00 grep apachejetspeedis the process running or not running? Which of the list is 18887 and 18828 which is the meaning of pid,0, which can explain the specific meanings of each output item in detail.A:PS: Show a process-a displays all programs.-E The effect of this parameter is the same as specifying the "A" parameter.-F Displays Uid,ppip,c and St

Summary of geometric physical meaning data of SVD singular value decompositionLearn about SVD singular value decomposition online data aggregation:1, about the SVD of a concept article, this article is also the originator of several subsequent articles ~Http://www.ams.org/samplings/feature-column/fcarc-svd2, about the analysis of the physical meaning of SVD more thorough articleHttp://www.cnblogs.com/LeftNo