Data storage concepts

Ebook Big data fundamentals: Concepts, drivers & techniques presents the following content: Chapter 1 understanding big data, chapter 2 business motivations and drivers for big data adoption, chapter 3 big data adoption and planning considerations, chapter 4 enterprise technologies and big data business intelligence, chapter 5 big data storage concepts, chapter 6 big data processing concepts, chapter 7 big data storage technology, chapter 8 big data analysis techniques.

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Chapter 10 - Storage and file structure. In this chapter, we probe below the higher levels as we describe various methods for implementing the data models and languages presented in preceding chapters. We start with characteristics of the underlying storage media, such as disk and tape systems. We then define various data structures that allow fast access to data.

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Textual data is unstructured, unlike the rigidly structured data in relational databases. The term information retrieval generally refers to the querying of unstructured textual data. Information-retrieval systems have much in common with database systems, in particular, the storage and retrieval of data on secondary storage. Chapter 21 describes information-retrieval techniques for querying textual data, including hyperlink-based techniques used in Web search engines.

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Chapter 23 covers the XML standard for data representation, which is seeing increasing use in the exchange and storage of complex data. The chapter also describes query languages for XML.

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This book "Database System Concepts (Sixth edition)" present the fundamental concepts of database management. These concepts include aspects of database design, database languages, and database-system implementation. Part 1 of book provide students with knowledge about: database-system applications; relational databases; structure of relational databases; introduction to SQL; intermediate SQL; advanced SQL; formal relational query languages; database design; database design and the E-R model; relational database design; data storage and querying;...

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Lecture Database management systems: Lesson 34. The main topics covered in this chapter include: data storage concepts, classification of physical storage media, physical storage media, memory hierarchy, RAID – redundant array of inexpensive disks, non-rotating parity,...

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This chapter is primarily concerned with issues surrounding file storage and access on the most common secondary-storage medium, the disk. We explore ways to structure file use, to allocate disk space, to recover freed space, to track the locations of data, and to interface other parts of the operating system to secondary storage. Performance issues are considered throughout the chapter.

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Module 13 - Secondary storage structure. In this chapter we describe the internal data structures and algorithms used by the operating system to implement this interface. We also discuss the lowest level of the file system the secondary storage structure. We first describe disk-head-scheduling algorithms. Next we discuss disk formatting and management of boot blocks, damaged blocks, and swap space. We end with coverage of disk reliability and stable-storage.

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Chapter 7 - Database design. This chapter begins our coverage by discussing database concepts in general, describing how to design database tables and relationships, and discussing how databases promote efficient storage of the data needed to support business decisions.

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In this chapter, the following content will be discussed: What operating systems do, computer-system organization, computer-system architecture, operating-system structure, operating-system operations, process management, memory management, storage management, protection and security, kernel data structures, computing environments, open-source operating systems

58p dien_vi02 07-10-2018 38 1   Download

This chapter is primarily concerned with issues surrounding file storage and access on the most common secondary-storage medium, the disk. We explore ways to structure file use, to allocate disk space, to recover freed space, to track the locations of data, and to interface other parts of the operating system to secondary storage. Performance issues are considered throughout the chapter.

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Tài liệu Database System Concepts present on: Relational databases, database design, data storage and querying, transaction management, system architecture, data warehousing, data mining, and information retrieval,...

1376p liemnguyen1996 14-03-2016 79 15   Download

Systems Analysis and Design: Chapter 13 - Designing Databases's Objectives is Understand database concepts; Use normalization to efficiently store data in a database; Use databases for presenting data; Understand the concept of data warehouses.

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The relational database uses the concept of linked two-dimensional tables consisting of rows and columns, as shown in Figure 1-2. Unlike the hierarchical approach, no predetermined relationship exists between distinct tables. This means that the data needed to link together the different areas of the network or hierarchical model need not be defined. Because relational users don’t need to understand the representation of data in storage to retrieve it (many such users created ad hoc queries against the data), ease of use helped popularize the relational model....

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Database management has evolved from a specialized computer application to a central component of a modern computing environment, and, as a result, knowl- edge about database systems has become an essential part of an education in com- puter science. In this text, we present the fundamental concepts of database manage- ment. These concepts include aspects of database design, database languages, and database-system implementation.

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SQL, or structured query language, is the international standard language for creating and maintaining relational databases. It is the basis of all major databases in use today and is essential for the storage and retrieval of database information. This fun and friendly guide takes SQL and all its related topics and breaks it down into easily digestible pieces for you to understand. You’ll get the goods on relational database design, development, and maintenance, enabling you to start working with SQL right away!...

748p hoa_can 26-01-2013 74 18   Download

Beginning Mac Programming takes you through concrete, working examples, giving you the core concepts and principles of development in context so you will be ready to build the applications you’ve been imagining. It introduces you to Objective-C and the Cocoa framework in clear, easy-to-understand lessons, and demonstrates how you can use them together to write for the Mac, as well as the iPhone and iPod.

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Linear List Concepts FIFO (Queue) .Queue - FIFO data structure • Queues are one of the most common of all data-processing structures. • Queues are used where someone must wait one's turn before having access to something. • Queues are used in every operating system and network: processing system services and resource supply: printer, disk storage, use of the CPU,... • Queues are used in business online applications: processing customer requests, jobs, and orders. .

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The basic concepts of signals and systems arise in a variety of contexts, from engineering design to financial analysis. In this chapter, you will learn how to represent, manipulate, and analyze basic signals and systems in MATLAB. The first section of this chapter, Tutorial 1.1, covers some of the fundamental tools used to construct signals in MATLAB. This tutorial is meant to be a supplement to, but not a substitute for, the tutorials given in The Student Edition of MATLAB User's Guide and The MATLAB User's Guide.

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The first section introduces the basic concepts of number systems, storage of numerical data, and machine arithmetic. Chapters on the Intel math unit architecture, data conversions, and the details of math unit programming establish a framework for developing routines in engineering and scientific code. The second part, entitled Application Development, covers the implementation of a C++ program and flowcharting. A tutorial on Windows programming supplies skills that allow readers to create professional quality programs.

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