Label:In the absence of a real data warehouse database, all data warehouses are now just a relational database created based on the dimension model, but the Data Warehouse database itself has some differences, such as the unique features of an OLTP database, such as the most
First, preface Changes in the work content, resulting in a return to the Data Warehouse model architecture and design, so take a moment to compare the system Review Data Warehouse modeling and system building knowledge system, recorded, as a note it.Second, the model No matter how
Data topic: How to Advertise Data Warehouse?
Author: hem
Affiliated Forum: Data Warehouse
Problem points: 300
Number of replies: 1
Popularity Index: 6
Publish Time: 2001-9-13 16:38:32
Data warehousing is a theme-oriented, integrat
Tags: des style blog http color os using IO JavaFor the first two years of the Data Warehouse, all calculations (including data ETL, and report calculation) were implemented using a high-profile standalone + MySQL approach. No OLAP). Used MySQL's own MyISAM and Columnstore engine infobright. This article summarizes some of the common performance issues and soluti
This paper gives the basic concept of SQL Server Data Warehouse, and uses the example construction process to analyze, for everyone's reference!
Basic concepts:
1. Cubes: Cubes are the primary object of online analytical processing (OLAP) and are a technology that allows fast access to data in a data
Ix. Degradation DimensionsThis section discusses a technique called a degenerate dimension. This technology reduces the number of dimensions and simplifies the dimension Data Warehouse model. Simple patterns are easier to understand than complex and have better query performance. This dimension can be degraded when there is no data required for the
Tags: sqlAzure Documentation:https://docs.azure.cn/zh-cn/#pivot =productspanel=databasesSQL Data Warehouse Documentation:https://docs.azure.cn/zh-cn/sql-data-warehouse/Learn how to use SQL Data Warehouse, which combines SQL Server
"Guide" This article describes how to build a simple data warehouse in SQL Server and analyze related issues.
Basic concepts:
1. Cubes: Cubes are the primary object in online analytical processing (OLAP) and are a technology that allows fast access to data in a data warehouse
How do I install jar (or war) dependency to a local data warehouse?The following example shows how to upload the DWR. jar package to a local data warehouse.-DownloadDWR. JarPackage to local, I put it to C:/(c disk root directory), shows:
-Enter the "command line prompt", enter C:/, and then execute MVN install: Instal
[Author: Zhang banquet this article version: V1.1 final modification: 2010.05.18 reprinted please specify the original article link: http://blog.s135.com/infobright/]
[For details, refer:Data Warehouse http://tech.techweb.com.cn/thread-389359-1-1.html Based on MySQL and infobright]
Infobright is an open-source data warehouse software integrated with MySQL. It can
Dimension Modeling Method
Dimension modeling organizes information into structs, which typically correspond to the query methods that analysts want to use for data warehouse data. How much food sales were in the northwest in the third quarter of 1999. Represents the use of three dimensions (product, geography, time) to specify the information to be summarized. S
In SVN , our project is not called a project or a folder, but it's called a "warehouse."Steps for building a warehouse:1,Create a code WarehouseL Create a folder under any drive letter (D:\svn\myApp\) as our version of the Coogan directory, such as we need to build a shop project, the current shop can only be counted as a folder, not "warehouse"L Svnadmin Create
In the data warehouse project, ETL is undoubtedly the most tedious, time-consuming, and unstable. If the data source and target are both oracle and meet certain conditions, you can use
In the data warehouse project, ETL is undoubtedly the most tedious, time-consuming, and un
MySQL big data warehouse receiving (single table) bitsCN.com
MySQL big data warehouse receiving (single table)
Recently, I have been studying data warehouse receiving. for the INSERT command, a small amount of
Prior to the deployment of the company BI Project example, found that the database tables are not set the primary key, foreign keys, has been thought to be a simulation project, the reason for not rigorous requirements. Today we know that the Data Warehouse is not designed for primary and foreign keys. These constraints should be done when ETL is programmed to ensure that all
Recently, a friend asked, what are the difficulties in data warehouse development?
After several years of development, we talked about data warehouses.TechnologyI personally don't think it is difficult to query and process large amounts of data and ETL processes in a data
Data Warehouse is a subject-oriented (Subject oriented), integrated (integrate), relatively stable (non-volatile), data collection that reflects historical changes (time Variant). Used to support management decisions.(1) Topic-oriented: Index data in the warehouse is organiz
Kickfire: the SQL chip boosts the MySQL data warehouse to equip every MySQL database server with an SQL chip. this is a vision of Kickfire to focus on the data warehouse market.
Kickfire launched the Kickfire Database Appliance test version integrated with the new SQL chip in April 14. The company said that the SQL ch
SQL ServerCategory 4Data warehouse modelingMethods are mainly divided into the following four types.
The first type is the three-paradigm modeling of relational databases. We usually use the three-paradigm modeling method to build various types of operational database systems.
The second category is the three-paradigm data warehouse modeling promoted by inmon,
What does the granularity in the data warehouse mean?
Granularity is one of the most important aspects of data warehouse design. Granularity refers to the level at which the data stored in the data unit of the
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