Data Manipulation

The National Space Science Data Center (NSSDC) Universal Data Format (CDF) is a self-describing data storage and multidimensional data manipulation platform and an independent discipline style. A Scientific data management package (called the "CDF Library") that allows programmers and http://www.aliyun.com/zixun/aggregation/13521.html "> Application developers to manage and manipulate scalar, vector, and multidimensional data arrays." Common Data Format 3.3 ...

Hive is a data Warehouse architecture built on Hadoop. 　　It provides: • A set of convenient tools for implementing data extraction (ETL). 　　• A mechanism for users to describe their structure to the data. 　　• Support the ability of users to query and analyze massive amounts of data stored in Hadoop. The basic feature of Hive is that it uses HDFS for data storage and uses Map/reduce framework for data manipulation. So essentially, Hive is a compiler that puts the user ...

SQL used to manipulate the database is generally divided into two kinds, one is the query, which is what we call the SELECT statement, the other is to update the statement, also known as data manipulation statements. The implication is to modify the data. There are 3 statements in the standard SQL, which are INSERT, UPDATE, and DELETE. There is another REPLACE statement in MySQL, so this article uses MySQL as a background to discuss how to make updates in SQL. First, INSERT and REPLACE I ...