ZhangZhihui's Blog  

2025年3月9日

Neo4j - Cypher Manual Study Notes 12
摘要： Indexes Neo4j supports two categories of indexes: Search-performance indexes, for speeding up data retrieval based on exact matches. This category inc 阅读全文
posted @ 2025-03-09 14:26 ZhangZhihuiAAA 阅读(4) 评论(0) 推荐(0) 编辑
 
Neo4j - Cypher Manual Study Notes 11
摘要： Functions SHOW FUNCTIONS Aggregating functions FunctionSignatureDescription avg() avg(input :: INTEGER | FLOAT | DURATION) :: INTEGER | FLOAT | DURATI 阅读全文
posted @ 2025-03-09 12:26 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0) 编辑

2025年3月7日

Neo4j - Cypher Manual Study Notes 10
摘要： Values and types Property types A property type value is one that can be stored as a node or relationship property. Property types are the most primit 阅读全文
posted @ 2025-03-07 16:26 ZhangZhihuiAAA 阅读(8) 评论(0) 推荐(0) 编辑

2025年3月6日

Neo4j - Cypher Manual Study Notes 9
摘要： Patterns Graph pattern matching sits at the very core of Cypher®. It is the mechanism used to navigate, describe and extract data from a graph by appl 阅读全文
posted @ 2025-03-06 17:29 ZhangZhihuiAAA 阅读(6) 评论(0) 推荐(0) 编辑
 
Neo4j - Cypher Manual Study Notes 8
摘要： COLLECT subqueries Introduced in 5.6 A COLLECT subquery expression can be used to create a list with the rows returned by a given subquery. COLLECT su 阅读全文
posted @ 2025-03-06 16:34 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0) 编辑

2025年3月5日

Big Data Analytics with Apache Hadoop Study Notes 6
摘要： 阅读全文
posted @ 2025-03-05 10:17 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0) 编辑

2025年3月4日

Big Data Analytics with Apache Hadoop Study Notes 5
摘要： 阅读全文
posted @ 2025-03-04 22:03 ZhangZhihuiAAA 阅读(1) 评论(0) 推荐(0) 编辑
 
Big Data Analytics with Apache Hadoop Study Notes 4
摘要： 阅读全文
posted @ 2025-03-04 19:46 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0) 编辑

2025年2月25日

Hive - Install Apache Hive and Apache Tez
摘要： Download Hive 4.0.1 from https://dlcdn.apache.org/hive/hive-4.0.1/apache-hive-4.0.1-bin.tar.gz . .bashrc: export HIVE_HOME=$sfw/hive-4.0.1 export HIVE 阅读全文
posted @ 2025-02-25 20:24 ZhangZhihuiAAA 阅读(21) 评论(0) 推荐(0) 编辑
 
Big Data Analytics with Apache Hadoop Study Notes 3
摘要： LLAP -- 1.Creating a Table: CREATE TABLE employees (emp_id INT, emp_name STRING, emp_salary DOUBLE) STORED AS ORC TBLPROPERTIES ('transactional'='true 阅读全文
posted @ 2025-02-25 19:53 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0) 编辑
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