what is difference between ods and data warehouse

(1) What is the difference between single and double quotation marks?1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape, other \ "\n\r\t can.2, double quotation mark can parse PHP variable, single quotation mark cannot. That

The previous article is also the first question of Lao Zhao's interview questions. This article continues, hoping to find the key points of our study through these interview questions, instead of carrying these things, and hopes to systematically learn these points. net. What is the difference between class and struct?

[Excellent] What is the difference between Pty and tty? What do you mean Http://www.chinaunix.net Author: george16 published on: 14:31:27 [Comment] [View Original] [AIX discussion board] [close] What

is to find a kind of data content and data storage address between the mapping relationship Understanding the basic definition of hash, we can not but mention some well-known hash algorithm, MD5 and SHA1 is the most widely used hash algorithm, and they are based on the MD4 design. So

DDoS attacks are essentially time-series data, and the data characteristics of t+1 moments are strongly correlated with T-moments, so it is necessary to use HMM or CRF for detection! --and a sentence of the word segmentation algorithm CRF no difference!Note: Traditional DDoS detection

(1) What is the difference between single and double quotation marks? 1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape, other \ "\n\r\t can. 2, double quotation mark can parse PHP variable, single quotation mark cannot. That

Difference between type parameter " To discuss " First, declare a generic class or generic method. Second, use a generic class or generic method. The type parameter "The unbounded wildcard " In layman's parlance, "T" is what is declared when a class or method is defined

What are CPK and PPK? What is the difference between them?A: CPK is complex process capability index.The abbreviation used by modern enterprises to representProcess Capability. Strong process capability can produce products with high quality and reliability.PPK

What is the difference between buildpath and includepath? What is the difference between buildpath and includepath? ------ Solution -------------------- buildpath and includepath of projects such as zend of eclipse series are usel

What is the difference between buildpath and includepath? What is the difference between buildpath and includepath ?, The buildpath and includepath of eclipse series zend projects are useless. They are mainly functions. new PHP sy

HTML files are displayed through CSS styles, that is, the page content is displayed in combination with XHTML and CSS. So what methods are there to introduce CSS styles into the XHTML file? I. inline reference CSS Add the style attribute directly to individual component labels. For example:No worries about templates-www.mb5u.com Advantages of this method: the lab

What are the include in JSP? What is the difference ?, Jspinclude What are the include in JSP? What is the difference? 1.

What is the use of the serialize function? What's the difference with JSON?Official explanation:Serialize (PHP3 >= 3.0.5, PHP4) Serialize---produces a value that can be stored in the notation syntax: String serialize (mixed value) Description: Serialize () returns one containing the VA Lue represents the Byte-stream string, which can be stored anywhere. This can

The so-called "Cloud" concept is to put databases and Management terminals remotely, that is, the cloud. Advantages of the cloud? 1. There are usually multiple servers on the cloud for redundancy, so it will not cause business Faults due to the failure of one server. 2. data can be stored on a remote server for a long time without being lost due to damage to t

Http://blog.sina.com.cn/s/blog_6d2890600101cwih.htmlThree data are missing a word, namely: "Programming", "Architecture" and "development" (or "Software Engineering"). At the same time, it is not "facing" components but "based on" components. Object-oriented Programming (Object-oreinted programming) is a programming paradigm. Refers to the way in which clas

is better support for OpenGL on ultra-high-end hardware.Under the Windows platform, Direct X has a slightly better rendering performance of 3D than OpenGL, especially on WINDOWS7/8, under normal hardware (non-server level). However, OpenGL rendering under the Linux platform is more powerful than OpenGL rendering under Windows. Overall, Windows Direct X performance

What is the difference between the href and src in this article? The difference between the href and src in HTML is introduced, there is a certain reference value, the need for friends can refer to, I hope to help you. Href: HREF

What does the A-share fusing mechanism mean? A-share fusing mechanism means that when the Shanghai and Shenzhen 300 index triggers a 5%-fuse threshold, the transaction is suspended for 15 minutes, triggering a 7%-fuse threshold at any time of the day, and the transaction will be suspended until the closing period. When will the A-share fusing mechanism be implemented? A-share f

the function name itself is a variable. For function declarations and function expressions as shown below, it is very useful to understand that a function in JavaScript cannot be overloaded without considering the difference between a function declaration and a function expression.1 function f (a) {2 return a + 3} 4 5 function f (a) {6 return a-10; 7} 8

This chapter introduces you to what are the canvas and SVG in HTML5? What is the difference between them? Have a certain reference value, the need for friends can refer to, I hope to help you. First, what is canvas? Canvas