Tag：data warehouse
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Time：2021-4-17
History of development The changes of the times, the reincarnation of life and death, the long history, nothing is eternal, only change is invariable, so is technology. When you choose the Internet, you are equivalent to riding a rolling train of the times, heading for the unknown direction. No matter what kind of technical architecture, […]
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Time：2021-4-16
1. Database overview and environment construction 1.1 why use database The data in the dynamic website is stored in the database Database can be used to store user information collected by client through form persistently Database software can manage data efficiently 1.2 what is database Database is the warehouse of storing data, which can store […]
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Time：2021-3-22
Introduction:In the supply chain logistics scenario, the business complexity is high, the business link is long, the nodes are many, the entities are many, and the real-time data warehouse construction is difficult. This is especially true for rookie cross-border import business scenarios. More complex scenarios lead to more complex entity data models. Many docking business […]
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Time：2021-3-18
abstract: full text retrieval is a widely used feature in the Internet scene, which can be used in search engine, website search, e-commerce search and other scenes. Gaussdb (DWS) also supports full-text retrieval function, which is based on gin index. Let’s introduce the full-text retrieval function of gaussdb (DWS) in detail. The function of full-text […]
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Time：2021-3-13
SQL basic note 3 normal form key What is paradigm? Ha, I can design and use it, but I can’t say it. Then the concept of less clear as a whole What is & classification Normal form (NF) is a kind of specification. When designing a database model, it has different levels of specification […]
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Time：2021-3-12
Introduction:This article will focus on the best practice of hologres in Alibaba’s Taobao marketing activity analysis scene, and reveal the technical test behind the first landing of Flink + hologres streaming batch integration in Alibaba’s double 11 marketing analysis screen. Summary: in the just concluded 2020 tmall double 11, the cloud native real-time data warehouse […]
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Time：2021-2-12
The purpose of real time data warehouse construction Solve the problem of traditional data warehouse Real time data warehouse is a very confusing concept. The real-time data warehouse itself seems to be the same as turning the black background of PPT into whiter. From the traditional experience, we think that the data warehouse has a […]
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Time：2021-2-9
1. Background What is zipper table? When building a data warehouse, it is an important way to process table data. Data structure can be compared with algorithm, and zipper table can be compared with data warehouse. The purpose is to solve the SCD requirements in building a data warehouse. Then what is SCD? It is […]
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Time：2021-2-1
On July 6, Apache Flink 1.11 was officially released. From the functional planning in early March to the official release in early July, 1.11 focused on optimizing the usability of Flink in nearly four months to improve the user‘s production experience. As one of the core modules in Flink, SQL is very important to promote […]
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Time：2021-1-30
abstractMore and more enterprises accelerate the digital transformation and upgrading, and the importance of data value is becoming more and more significant. Li Shanshan, product manager of Alibaba cloud computing platform interactive analysis team, will interpret the value of cloud native HSAP system hologres. It mainly shares the mainstream real-time data warehouse architecture and the […]
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Time：2021-1-28
It’s been three weeks since Flink 1.11 was officially launched, and the most attractive feature is hive streaming. It happened that zeppelin-0.9-preview2 was also released not long ago, so I wrote a practical analysis of Flink hive streaming on Zeppelin. This article mainly from the following parts to share with you: The meaning of hive […]
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Time：2021-1-25
Absrtact: with the contribution of xrfinbj, this paper mainly introduces the process of importing data from hive data warehouse to Nebula graph by exchange tools and the related precautions. 1 background The company has the scenario of using graph database, and determines the nebula graph database through technology selection. It also needs to verify the […]
