olap pivot

Warehouse is to organize, summarize and reorganize the information and provide it to the corresponding management decision-maker in time.Data cube and OLAPThe data obnoxious body is modeled and observed in multidimensional data import rows. is the data cube for customers, products, and sales: 650) this.width=650; "title=" image "style=" margin:0px; Display:inline "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/5A/0C/wKioL1T1MB_BaQ-DAAE73AdGGuY463.jpg "" 608 " height= "299"/> Multidimensional

This article discusses: Excel as a server-based application Excel service architecture and API Create a managed User-Defined Function Use Excel to build custom solutions This article uses the following technologies:Excel Service Get the sample code for this article. New: getting e the sample code online!-Or-Code download location:Excelservices2007_08.exe (226kb)

*/Mergepass (tr,l->r,k,l->length);k=2*k;/* sub-sequence length doubled */}}/* **************************************** *//* Quick Sort ******************************** *//* Exchange Order table L record of the sub-table, make pivot record in place and return to its location *//* At this time the record before it is small (smaller) to it. */int Partition (sqlist *l,int low,int High){int PivotKey;pivotkey=l->r[low]; /*

Quick Sort OptimizationThe quick line is can be optimized, then what can be optimized, is it the same as you think? Let's look down.　　1, optimize the selection of the pivot valueIf the PivotKey we have selected is in the middle of the entire sequence, then we can divide the whole sequence into fractional and large sets of numbers. But notice, what I just said was, "if ... Is the middle, so what if the pivotkey we choose is not the middle number? For e

to divide (partition), in which the first element is selected as the pivot element, and then scanned from both ends of the sequence to be ordered, and when scanning from the tail to the head, if the element is greater than or equal to the pivot element, no action is required on the sequence. Because these elements are in the correct position, if an element is found to be smaller than the

9.9.4 Fast Sorting optimization Just speaking of the quick sort or there are a lot of improvements can be made, we look at some of the optimization scheme. 1. Optimize Pivot selectionIf the PivotKey we choose is in the middle of the entire sequence, then we can divide the whole sequence into decimal sets and large numbers. But notice, what I just said was "if ... Is the middle ", then if we choose the PivotKey is not the middle number. For example, we

Optimized for some details 10% faster than the previous quick row/** * @authorCLY * Quick Sort*/ Public classMyquicksort {/*** Treats row array sort (ascending) *@paramarr Queue Array *@paramThe starting position of the pivot pivot in the array to be sorted (sort start bit) *@paramend bit of this quick row (sort end bit)*/ Public Static voidSortint[] arr,intPivotintend) { intTmp_pivot =

I. OverviewPivot table is an interactive table that allows you to perform certain calculations, such as summing and counting, to dynamically change the layout of a pivot table, or to rearrange line numbers, column labels, and page fields. When the layout is changed, the pivot table is updated according to the new layout, which can be said to be a powerful data analysis tool. Therefore, this article describe

quick sort, and also lists some of the estimated large O values for hill sort. Note that nx/y represents the Y-root of the X-square of N (n equals 100,N3/2 is 1003 squared, and the result is 1000). In addition (LOGN) 2 represents the square of n logarithm, which is usually co-log2n.Partition Q: What is a partitioning algorithm?A: Division (partitioning) is the fundamental foundation of the fast ordering that is discussed later, so it is explained as a separate section.A: dividing data is a grou

Title Description: Given an unordered array of integers, find the number of bits. The median is the intermediate value of the sorted array, and if the number of arrays is an even number, the number of N/2 of the sorted array is returned.Example: Give the array [4, 5, 1, 2, 3], return 3; give array [7, 9, 4, 5], return 5The goal is to find the number that is in the middle of the line. This is not reminiscent of the quick sort, the quick row is the pivot