'Hashed files' diaporamas de présentation

The Database Design and Implementation Process

The Database Design and Implementation Process. Phase 1: Requirements Collection and Analysis Phase 2: Conceptual Database Design Phase 3: Choice of DBMS Phase 4: Data Model Mapping (Logical Database Design) Phase 5: Physical Database Design <= You are here!

1.23k views • 50 slides

Chapter Outline

Chapter Outline. Physical database storage structure - @ physical level in 3-schema architecture Disk Storage Devices Files of Records Operations on Files Unordered Files Ordered Files Hashed Files Dynamic and Extendible Hashing Techniques RAID Technology. Storage hierarchy.

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Lec 7:Disk Storage, Basic File Structures, and Hashing

Lec 7:Disk Storage, Basic File Structures, and Hashing. Chapter Outline. Disk Storage Devices Files of Records Operations on Files Unordered Files Ordered Files Hashed Files Dynamic and Extendible Hashing Techniques RAID Technology. Storage Hierarchy. Storage of Databases.

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Disk Storage, Basic File Structures, and Hashing.

Disk Storage, Basic File Structures, and Hashing. Chapter Outline. The Storage Hierarchy How Far is Your Data Disk Storage Devices Records Blocking Files of Records Unordered Files Ordered Files Hashed Files RAID Technology Storage Area Network. - The Storage Hierarchy.

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Disk Storage Devices

Disk Storage Devices. Preferred secondary storage device for high storage capacity and low cost. Data stored as magnetized areas on magnetic disk surfaces. A disk pack contains several magnetic disks connected to a rotating spindle.

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Basic File Structures and Hashing

Basic File Structures and Hashing. Lectured by, Jesmin Akhter, Assistant professor, IIT, JU. Outline. Files of Records Operations on Files Unordered Files Ordered Files Hashed Files Dynamic and Extendible Hashing Techniques RAID Technology. Records. Fixed and variable length records

540 views • 28 slides

METU Department of Computer Eng Ceng 302 Introduction to DBMS

METU Department of Computer Eng Ceng 302 Introduction to DBMS Disk Storage, Basic File Structures, and Hashing. by Pinar Senkul resources: mostly froom Elmasri, Navathe and other books. Chapter Outline. Disk Storage Devices Files of Records Operations on Files Unordered Files

264 views • 26 slides

Lec 5 part2

Lec 5 part2. Disk Storage, Basic File Structures, and Hashing. Operation on Files. Typical file operations include: OPEN : Readies the file for access, and associates a pointer that will refer to a current file record at each point in time.

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Today

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