Create | data
How to create a successful data Warehouse (Warehose), the following story will tell you!
The company's ' s ' Warehouse project began with a casual conversation between several executives on their way to LUN Ch. The people involved were the IT manager for decision support as as and as several members of
Key-Value Store databaseTemporary: as memcached. The temporary key-value database stores the data in memory, which in two cases results in the loss of data, the first is the power outage, but the data content exceeds the memory size. The benefits of this treatment are very fast.Permanent type: such as Tokyo Tyrant, flare and RomaThe two are both types: Redis. Red
NoSQL data model (4) Summary of nosql aggregation, NoSQLBackground in the first three articles, we have introduced three databases that belong to the aggregation model in NoSQL: Key-value type, document type, and column family type. The following analyzes the common points and differences of the three aggregate
This article outlines the general process of using OWB to create a data warehouse. Oracle's OWB is one of the three most current ETL products. OWB can not only complete data extraction, conversion and loading, but also help users create ROLAP (relational online analysis Process) and MOLAP (multidimensional online) in Oracle database Analysis Process)
is closely related to the Data warehouse and the RDBMS. But it never stood up and claimed it wasn't as simple as it seemed at first. Hadoop interrupted the conversation by claiming it was a data warehouse in the Hadoop field. Hadoop seems to give up the best marketing PR rep, and after a simple conversation, it turns
Data warehouse design purpose and data warehouse design purpose
The purpose of data warehouse design or the criteria for measuring success:
1. The data
Tags: relational data table NoSQL database L database Combat div operation Field
Why NoSQL is produced:
The fact that relational databases are not good at doing so is the reason why NoSQL is Born:
Large number of data write operationsThe book is written "la
First, what is a data warehouse
The traditional data warehouse concept is that data warehouse is a structured data environment for decision Support System (DSS) and on-line analysis app
1. The concept of Data Warehouse began in the 1980s S and first appeared in the book William H. Inmon, known as "the father of Data Warehouse. As people deeply recognize and constantly improve the research, management, and maintenance of large data systems, after summing up,
Introduction to ETL technology: Introduction to ETL, data warehouse, and etl Data WarehouseETL is the abbreviation of Extract-Transform-Load. It is used to describe the process of extracting, transforming, and loading data from the source to the target. ETL is commonly used in data
0x00 Preface
The following content, is the author in the study and work of some summary, of which the concept of most of the content from the book, the practical content mostly from their own work and personal understanding. Due to the lack of qualifications, there will inevitably be many mistakes, I hope to criticize. Overview
The Data warehouse contains a lot of content, which can include architecture, m
Brief introduction
The business environment is changing rapidly, and so is the type of business data. A successful Data warehouse solution is based on flexible design that adapts to changing business data. The architecture of data Wareh
Tags: OLAP online analytics for Data warehouse applicationsRelated articles:Data Warehouse Application (i): Data Warehouse model designData Warehouse Application (ii): Data extraction,
PHP-based data warehouse receiving Program (2): php-based data warehouse receiving program
In the previous article, the Program for collecting data into the database based on PHP (ii) mentions the list data on the news information
PHP-based data warehouse receiving Program (1): php-based data warehouse receiving program
A friend asked me to help me develop a program for collecting news information a few days ago. I took some time to write a PHP version and recorded it as needed.
When it comes to collection, it is nothing more than obtaining info
Microsoft vs. Yahoo! The long-running purchase war may put many people tired of news. But today we see this about Yahoo! The technical news is worth reading: Size matters: yahoo claims 2-petabyte database is World's biggest, busiest. Yahoo! VP Waqar Hasan of disclosure Yahoo! The current data warehouse capacity is 2 Pb. It is used to analyze 0.5 billion of user access behavior every month and process 24 bil
The life cycle approach provides a roadmap for the development of data warehouses, and the overall structure and steps of the life cycle approach are
Define Business requirements
Technical path
Technical Architecture Design
Selection and installation of products
Data path
Dimension modeling
Physical design
ETL Design and development
Bi app Path
Before you start
About this series
This tutorial series Informix Warehouse Feature introduces the features and features of the new client and server Software in Informix Warehouse. You can use these tools to create and deploy data Warehouse projects, to model databases on the Informix
NoSQL databases: data consistency, nosql Database ConsistencyNoSQL Database: Data ConsistencyRead consistency
High ConsistencyAccess any node in the cluster at any time, and the data obtained is consistent;
User consistency is consistent with the
the time, I later on the Internet access to more information, found that my understanding is only partial. (Even the author's understanding is wrong, such as the author of 2.1.5 The consistency of the simple understanding of the role of check constraints) in fact, the primary foreign KEY constraints, check constraints are the scope of database integrity (why is the integrity of the acid in the no longer?) I understand that because it only checks the check constraints on the
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