bi three way

methods, the MD5 method is used to passively compare the full table data, resulting in poor performance. When a table does not have a primary key or a unique column and contains duplicate records, the accuracy of the MD5 method is poor. D. Log comparison: Analyze the logs of the database to determine the changed data. Oracle's Change Data Capture (CDC, changeddatacapture) technology is representative in this regard. The CDC feature is introduced in the Oracle9i database. CDC helps you identify

In the original: "Bi thing" Microsoft linear regression algorithmThe Microsoft Linear Regression algorithm is a variant of the Microsoft Decision tree algorithm that helps you calculate the linear relationship between dependent and independent variables and then use that relationship for prediction.The representation represented by the relationship is the formula that best represents the line of the data series. For example, the lines in the following

Today we start another important part of SQL SERVER bi--reporting service, relative to integration service and analysis service,reporing Service in the domestic users should be a lot more. On the one hand, because the reporing service cost is lower, directly attached to SQL Server, on the other hand, in fact, SSRS to a large extent, or to meet the needs of our report. In SQL Server 2008, SSRS has stepped up in a number of ways, "if Microsoft invests 1

Tags: style blog http io ar os using SP forIn the original: "Bi Thing" SQL Server 2008 ArchitectureMicrosoft SQL Server is a platform that provides database and data analysis for online transaction processing, data warehousing, e-commerce applications.Architecture is a way of describing the relationship between components and elements of a system. The architecture of the Microsoft SQL Server System is a des

mining? 1, problem definition 2. Data preparation 3. Training 4. Verification Finally, but as I said before, data mining is not magic. It predicts events not because they can see the future. Instead, it is just a mathematical way to analyze what is going on in historical data and to determine what is most likely to happen if the current trend continues. Then there is always the case that some external factors are causing the current trend to go d

BFS, bi-directional BFS and A * Table of Contents 1. BFS 2. Bidirectional BFS 3. A * algorithm It is useless to say no practice, we from the well-known POJ 2243 this topic: The main idea: given a starting point and an end, according to the Knight's Way (Go Day), from the beginning to the end of the minimum move how many times Set A to seek the beginning of the road, B is the destination end. 1 BFS BFS is a

A doubly linked list of data structuresFor example: Existing two-way linked list twowaylinked stored 1,2,3,4 Four elements, then the collection object will have 4 nodes A, B, C, D, by the above structure can be known, Node A is stored in element 1 and Node B, node B is stored in element 2 and Node A and node C, Node C stores element 3 and Node B and node D, and Node D stores element 4 and node C. If you now want to insert an element 5 in the middle of

as DWDM---Data mining (minning)OLAP---Online analytical processing, English name on-line Analysis processing, abbreviated to OLAPOLTP---on-line Transaction processing online transaction processing system (OLTP) SQL Server BI:SQL Server Enterprise Edition comes with three services: SQL Server Integration Service, SQL Server Analysis Service,sql Server Reporting service. These three services are for BI services, can be used alone, and can be used toget

the project and operations process.Some of the more critical information needs to be carefully filled out;Bug brief, assign to WHO and how important, followed by the method of how to reproduce the bug, and what kind of test case can explain that the bug is fix off.Information about this bug can be updated at any time in the history department.After you save each record, you can see the information update record below, and what the current state of the bug is.At this point a bug work item is cre

conditions---------------------------------------------------------------------------------TreeSet the underlying data structure is a two-fork tree. The basis for guaranteeing the uniqueness of the element: CompareTo method return 0.TreeSet the first way of ordering: to make the elements themselves comparable, elements need to implement comparable interfaces, overriding CompareTo methods, which is also called the natural order of the elements, or the

characteristics3. Logically able to explain clearly Identify the key features of various users After defining a classification scheme, we then need to return to observe the performance of the various three-way characters on each variable. According to the results of the difference test, we distinguish the level of different users in this index by color area. Cluster Interpretation naming When it comes to understanding and

First, the foreword:The article on how to implement bi-directional SSL authentication with Tomcat server is very early, and a more practical article can look at IBM developerWorks China website May 2002 configuration Tomcat 4 uses bidirectional SSL (http:// www-900.ibm.com/developerworks/cn/security/se-tcssl/index.shtml) and configure Tomcat 5 to use bidirectional SSL (Http://thinkbase.net/w/main /wiki? tomcat5ssl_serverandclient).On the principle sid

Since the project has not really started, but has been in contact with BI for more than half a year, preface, these days to get a simplified version of the BI project. On the one hand to the new bi beginners friend a reference, on the other hand also for their upcoming projects to prepare, so that they can take into account the details of some projects. We also w

Divide the roles of BI users in the enterprise into the following categories:System administrator: No data permissions, no functional permissions, responsible for configuring other people's rights;Bi Expert: Have all data permission, have Multidimensional Analysis, Report view, report development, Model Development Authority, responsible for developing and maintaining B