MIS 325 Lecture Notes - Lecture 11: Apache Hadoop, American National Standards Institute, Data Manipulation Language

• School: UT-Austin
• Department: Management Information Systems
• Course: MIS 325
• Professor: John Mote

Document Summary

3 vs - three basic characteristics of big data databases: volume, velocity, and variety. American national standards institute (ansi) - the group that accepted the dbtg recommendations and augmented database standards in 1975 through its sparc committee. attribute - a characteristic of an entity or object. An attribute has a name and a data type. Big data - a movement to find new and better ways to manage large amounts of. Web-generated data and derive business insight from it, while simultaneously providing high performance and scalability at a reasonable cost. business rule - a description of a policy, procedure, or principle within an organization. A class encapsulates an object"s data representation and a method"s implementation. The client node acts as the interface between the user application and the hdfs. conceptual model - the output of the conceptual design process. Classifications include 1:1, 1:m, and m:n. constraint - a restriction placed on data, usually expressed in the form of rules.