qlikview dimension

1. Capacity first, optimization second-this rule takes effect when a failure occurs. When you are down, do not study any optimizations, restore the device first. 2. Keep all the records that can be captured--take PostgresQL as an example, including WAL files, slony replication, snapshot technology, DB version based on the hard disk (included with the snapshot) 3. Do not introduce more problems because of optimization. Usually the things we do when we solve the problem turn into the burden of t

only makes the resources no longer waste, but also makes the expansion of business adjustment becomes easier and more cost-effective, and indeed greatly simplifies the traditional sense of operation and maintenance, is the future of small and medium internet companies to develop an important trend. At this time, the operation of the focus will be shifted to the platform architecture selection and optimization, operations need to pay more attention to business characteristics and related to the

Year came a load-balanced manufacturers to do product training, looked at other people's things, in comparison to their own things, ashamed. Smoking Gap and colleagues chat, they saw the manufacturer's products, said not to think that there is more novelty, nothing more than a brand of standardized products on the market, but in my opinion, not only see their own shortcomings, but also see a lot of domestic network equipment manufacturers between the PK point of misunderstanding. What makes me f

Merge data 3 ----------- conditional split and slowly changing Dimension components Search for Excel and databases using productnumber. When the data is in Excel but not in the database, it is added; when all data is in Excel, it is updated; if there is data in the database but there is no data in Excel, It is deleted.Delete the database if it is no longer in the database. I. Conditional split componentIf you use the product table for testing, there

Returns an array dimension (number of layers) call. $arr = array(array(1,2=>array(1,2,3)),2=>array(1=>array(array(array())),2),3);echo GetArrLv($arr); For example, if implode is a multi-dimensional array, an error is returned. of course, we can use an array similar to array_search (true, array_map ('is _ array', $ arr )) this method is used to determine whether it is 2-dimension + (for example, please Hold

CString str = _t ("Dimension Style"); CString strtmp (_t ("")); ////Get the callout style sheet for the current drawingacdbdimstyletable*pdimstyletbl; Acdbhostapplicationservices ()->workingdatabase ()getdimstyletable (PDIMSTYLETBL, acdb::kforwrite); ////Whether it already contains if(pdimstyletbl->has (str)) {Acdbdimstyletablerecord*Pdims; Pdimstyletbl-getAt (Acdb_model_space, Pdims, acdb::kforwrite); DoubleDtxtheight = Pdims->dimtxt ();////height

I am currently a very important part of the work is to participate in or responsible for a number of clusters in the Department of Maintenance, application development and optimization, including: HBase cluster, Storm cluster, Hadoop cluster, Super Mario cluster (real-time streaming system developed within the department), etc., with the expansion of business, The number of cluster machines has been small and large. Next is me to myself this 1 years, in the cluster application and the operation

error: "Invalid 9-patch, cannot is less than 3 pixels in a dimension"This address: Http://blog.csdn.net/caroline_wendyError: "Invalid 9-patch, cannot is less than 3 pixels in a dimension:invalid 9-patch, cannot is less than 3 pixels in a Dime Nsion "Reason: 9-patch file name, name error. The original name is ". 9.png", delete ". 9" , press the error message, modify the relevant file name. When you modify the file name, you need clean project to clear

How to determine the php array dimension (php array length) /** * Returns the array dimension. * @ Param [type] $ arr [description] * @ Return [type] [description] */Bbs.it-home.org Function arrayLevel ($ arr ){ $ Al = array (0 ); Function aL ($ arr, $ al, $ level = 0 ){ If (is_array ($ arr )){ $ Level ++; $ Al [] = $

: This article mainly introduces PHP to judge the encapsulated functions of Array dimensions. For more information about PHP tutorials, see. Sometimes need to judge the dimension of the array, the internet to check a lot of things similar to the http://www.poluoluo.com/jzxy/201306/215088.html writing this way, pulling and do not understand what meaning. I wrote the following: Privatestaticfunctionarray_depth ($ array) {if (! Is_array ($ array) retu

PHP implements multi-dimensional array to convert string and multi-dimensional array to one-dimensional array, multidimensional dimension. PHP implements multi-dimensional array to convert string and multi-dimensional array to one-dimensional array. This article describes how PHP implements multi-dimensional array to convert string and multi-dimensional array to one-dimensional array. PHP implements multi-dimensional array to convert string and multi-

Recently encountered a problem, is the indefinite dimension array of empty values removed, back to study, write out, do not know whether or not to optimizeWrite bad, if there is a good idea or a good way to achieve, welcome to come, if there is wrong, also welcome Daniel can explainThe code is as follows, please correct mefunction Array_remove ($arr){First judge is not an arrayif (!is_array ($arr)) return false;foreach ($arr as $key = $value){if (Is_a

Refer to "Introduction to machine learning"Suppose we have a dataset that contains n points. These n points can be labeled as positive and negative examples using 2N methods. Therefore, the n number of points can define 2N different learning problems. If for any of these problems we are able to find a hypothesis that H belongs to H, separating the positive and negative examples, then we call H hash n points. That is, any learning problem that can be defined with n points can be learned from an a

PHP judge Array dimension (encapsulated function) sometimes need to judge the dimension of the array, the Internet to query a lot of things similar to http://www.poluoluo.com/jzxy/201306/215088.html writing this way, pull miscellaneous and do not understand what meaning. I wrote the following: Private static function array_depth ($ array) {if (! Is_array ($ array) return 0; $ max_depth = 1; foreach ($ ar

Principal Component Analysis Algorithm advantages and disadvantages: Pros: Reduce data complexity and identify the most important features Cons: Not necessarily required, and may lose useful information Applicable data type: numeric data Algorithmic thinking: The benefits of dimensionality reduction: Make data sets easier to use Reduce the computational overhead of many algorithms Noise removal Make the results understandable The idea of principa

On the first page, I spent four hours reading the Help File of MATLAB from the first page to the 39th page. MATLAB learners are more niche than C language learners, so you cannot find many things online. You can only query help files. Thanks to MATLAB, it provides extremely detailed help files. (But I am a scum) 1: directly use the help command: help what you want to query, but the display is relatively rough 2: Enter helpdesk in the command interface. The help navigation window is displayed. 3:

Python's two-dimension dictionary definition and implementation method, twodimensioncode This article describes how to define and implement the "two-dimension dictionary" dictionary in Python. We will share this with you for your reference. The details are as follows: Dict in Python allows quick search. Is there a two-dimensional dictionary like an array with two-dimensional arrays? For example, when I need

Case study: ios source code and dimension case: ios source code Source code: HTKDynamicResizingCell. HTKDynamicResizingCell provides TableViewCell/CollectionViewCel for Automatic Dimension calculation. You only need to set the AutoLayout constraint.Usage:Use CocoaPods to add:Pod 'htkdynamicresizingcell ',' ~> 0.0.1'Pod installAlternatively, add the HTKDynamicResizingCell folder in the demo to your project.T

Browser reference benchmarks: Firefox, Chrome, Safari, Opera, IE* The horizontal vertical centering scheme of the unknown dimension element is based on the vertical-align:middle characteristics of the inline-block element, where it is necessary to have a certain understanding of the application of the line box and the vertical-align./* Center Horizontally */ Text-align:centerVertical-align Knowledge pointsVertical-align for inline level, inline-block

This question is not convenient to use recursion! Intuition tells me that we can use two layers to traverse. The outer layer is a dimension, and the inside layer is a dimension. But in fact, it is very difficult to do it! Finally, the number of elements used in the outermost loop is determined. The number of elements used in the loop is used in conjunction with the cycle of dimensions, and the problem i