olap meaning

The meaning of-atime,-ctime,-mtime under LinuxWe are often asked in forums or groups, how to view the creation date of a file under Linux or Unix?It's often said that with the Find command plus option-ctime, the-ctime here is not the create time, but the change time.Operating systems such as Linux or Unix do not save the creation date of the file for us.[@[email protected]]The meaning of-atime,-ctime,-mtime

Turn from: Http://www.2cto.com/os/201305/213782.htmlLinux System file properties: Drwxr-xr-x meaning drwxr-xr-x 4 Oracle DBA 4096 May 11:47 or Alog1drwxr-x---Root root 4096 may 13:51 root the above file details the meaning of the drwxr-xr-x represented today tidy up D: The first bit represents the file type, D is the directory file, L is the link file, the The pass file, p is the pipe rwx: 第2-4位 represents

1. One-dimensional array of one-dimensional array names, representing two (1) representing the entire array (although Tan Don's book says no, but only in that context) (2) represents the first address2. Two-dimensional arrayIt is troublesome to think of a two-dimensional array in terms of pointers, so I think of a way of understanding it myself, as shown inthe meaning of the two-dimensional array name feels uncomfortable, so find out what it stands fo

When you start learning Java, you don't focus on down transformation. Have been confused about the meaning and purpose of the downward transformation, it is not clear that it is not, the development process must not unexpectedly use downward transformation.In fact, the upward transformation and downward transformation are very important, we can usually see the upward transformation of a little more, upward transformation is also better understanding.B

" version. So what is IMAX?IMAX (the abbreviation of image maximum, meaning "maximum image", Chinese pronunciation can be read as "Amex") is a kind of film projection system which can show larger and higher solution image than traditional film. The whole system includes film copy, projector, sound system, screen and so on IMAX specification. The standard IMAX screen is 22 meters wide and 16 meters high, but it can be played on a larger screen, and so

To show you live software users to detailed analysis to share the meaning of the license plate. Analytical sharing: MO Show Live license plate is to see the micro-signal of the show, the street show live driving is the show live broadcast of the welfare, large-scale live, otaku welfare ~ on the street to find the car owners broadcast, add driving micro-letter, the following do not say you know ~ Well, the above information is a small series t

The following are 2 common system LEDs that correspond to each other, and you can download the instructions for the corresponding notebook model by downloading the following connection, and view the specific system LEDs in the instructions. 1, Idea notebook front system led (figure, the left is the power supply lamp, the right side is the battery lamp) The meaning of various display states of LEDs: 2, Yantian, Zhaoyang part of the fron

Friends of the website know that ping commands are very useful. What does the TTL mean? Such a problem, in fact, the TTL is more about the network, such as we ping IP or ping the site can see the TTL value , the following figure, I believe that the user asked the question should be ping in the TTL what meaning it, Let's take a detailed description of what the TTL means. Hope to help you! In the network is mainly refers to ping speed in the TTL value,

recursion, recursion, meaning of iterations Recursion: A program calls its own programming skill called recursion. Recursion as an algorithm is widely used in programming languages. A procedure or function in its definition Or a method of calling itself directly or indirectly, it usually transforms a large, complex problem layer into a smaller, similar size to the original problem. Problem to solve, recursive strategy can be described in a small numb

in the Red Hat logo. 5-mandriva Formerly known as Mandrake, and maintained by the MandrakeSoft company. When MandrakeSoft lost the battle with Hearst Corporation for the Mandrake name, and acquired the Connectiva, the name changed to Mandriva. 6-sabayon An Italian dessert, also known as zabaglion, is cooked with egg yolks, sugar and other ingredients. 7-debian The name was taken by Ian Murdock in 1998, mixed by Debra, who was his girlfriend and now his wife. 8-damn Small Linux As its name s

Deep Exploration of the meaning of extern "C" in C + + Source: Pconline 2005-08-30 10:04:00 Author: Song Baohua Editor: Moningfeng 1. Introduction The C + + language was originally created "A better C", but this does not mean that the C-language-like global variables and functions in C + + are compiled and connected in exactly the same way as the C language. As a language intended to be compatible with C, C + + retains some of the characteristics

to cause eye fatigue and discomfort. On the other hand, blue has a relaxing effect on the nervous system, and according to some studies, a blue background can also increase productivity. However, if your product is related to food, do not use blue as the background color, because the blue will inhibit people's appetite oh. A symbol of color.The symbolic meaning of color is sometimes related to things in nature. For example, the color of the sky and t

This is the pattern modifier for the regular expression. (? i) is not case-sensitive when matched. Indicates that the match is case-insensitive. (? s) is Singleline (single-line mode). Represents the meaning of a change, which matches each character (including the newline character \ n). (? m) is the multiline (multiline mode). Represents changing the meaning of ^ and $ so that they match at the beginni

Everybody prawns is good, younger brother is looking at spring recently, who can explain the configuration below. class= "Org.springframework.transaction.interceptor.TransactionProxyFactoryBean" > The last thing I understand is this sentence: What is the meaning behind the-exception, in addition, some code this line inside also has ReadOnly, all represents what meaning. Solutions» It is the disposition of t

This article describes the meaning of Hibernate's generator attribute. The generator attribute has 7 classes, and this article briefly describes the meaning and usage of these 7 classes. [XHTML]View plain copy Hibernate's Generator attribute has 7 classes, this article briefly describes the meaning and usage of these 7 classes. 1, Identity: for MySQL database. Fe

On the physical meaning of negative frequency in spectrum --Reading analysis * Statement: This article is a large number of references to Chen Hui deep, Fang Haiyan of the relevant paper content* This article is the best I've ever read to explain the negative frequency of the spectrum, just to pay tribute to the two authors in this blog post. Absrtact: This paper discusses the physical

The meaning of the color that the front end should understand I. Meaning 1. red)Enthusiastic, lively, and publicized. It is easy to inspire courage, and at the same time it is easy to get angry. The mood fluctuates greatly. The West uses this as a symbol of war, and the East represents auspicious, optimistic, and festive, red also means warning. 2. orange)Fashion, youth, dynamic, and energetic. The sun is

-------------------- Windows Phone 7 Mobile Phone development,. Net training, and hope to communicate with you! ---------------------- The book says that group by can divide a table into logical groups and calculate aggregate statistics for each group .. I didn't understand the meaning of this sentence at first, and I finally understood it with the help of everyone. The literal meaning of group by is: grou

Black belt meaning and responsibility A martial arts master squatted in front of the martial arts master to accept the difficult black belt ceremony. After years of rigorous training, this apprentice finally came to the fore in martial arts. "You must accept a test before you are given a black belt ." Wu xuesong said."I'm ready ." The apprentice replied. Thought it could be the last round of boxing."You must answer the most basic question: what is

This article is reproduced from others:PS: Since the SVD decomposition indefinitely, this text is translated, the original text with meticulous analysis + a large number of visual graphics to demonstrate the meaning of SVD. It is not easy to explain the problem so clearly in a limited space. The original text gave a simple image processing problem, simple image, sincerely hope that the passing of the road friends from different angles to explain their