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Introduction to Phoenix (Level 1: Phoenix installation, level 2: Phoenix basic grammar)
2022-07-26 10:29:00 【True question OK】
The first 1 Turn off :Phoenix install
Task description
Our mission : Installation and configuration Phoenix
.
Related knowledge
After learning the previous content , We will find that HBase
The basic concept of RDBMS is quite different from traditional relational databases ,HBase
Query data using scan()
and get()
Cooperate with the filter to query , Insert data using put()
Method , This is very different from operating relational databases , In a relational database , For example, create a table and use create
sentence , Insert data using insert
sentence , These are familiar to us , however HBase
Not in itself SQL
, So if we want to write HBase
The program is also like writing SQL
Isn't that impossible ? The answer is there is a way .
In order to make familiar SQL
Programmers can quickly use HBase
, Use Apache Phoenix
It's a better way . It provides a set similar to SQL
The grammar of , And the sequence 、 Indexes 、 Functions and other tools , To cause to SQL
Migrate the code to HBase
Make it possible .
Discussion on this customs Phoenix
How to use it , as well as HBase
combination Phoenix
The emissary of
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