JPS6423351A - Increasing system for maximum capacity of key-based data set of virtual storage access method - Google Patents

Increasing system for maximum capacity of key-based data set of virtual storage access method

Info

Publication number
JPS6423351A
JPS6423351A JP62179589A JP17958987A JPS6423351A JP S6423351 A JPS6423351 A JP S6423351A JP 62179589 A JP62179589 A JP 62179589A JP 17958987 A JP17958987 A JP 17958987A JP S6423351 A JPS6423351 A JP S6423351A
Authority
JP
Japan
Prior art keywords
key
data set
based data
rba
access method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62179589A
Other languages
Japanese (ja)
Inventor
Ichiro Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62179589A priority Critical patent/JPS6423351A/en
Publication of JPS6423351A publication Critical patent/JPS6423351A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize the management with use of just a single file by using an equation I to obtain the position of a control interval CI storing data when a key-based data set is managed by an extension relative type address. CONSTITUTION:A writing means 18 writes the information into a VSAM catalog 1 to show whether the relative byte addresses RBA included in the catalog 1 and a key-based data set are equal to the extension byte address RBA which is raised to a unit on the control interval boundary or to an ordinary relative byte address RBA. An access control means 17 searches the index of the key- based data set to obtain the corresponding entry in a sequence set based on a user key in case a key access is applied to the key-based data set. Then the position of a control interval CI storing data is obtained from an equation I when the key-based data set is managed by an extension relative type address. Then the obtained CI is searched by keys.
JP62179589A 1987-07-18 1987-07-18 Increasing system for maximum capacity of key-based data set of virtual storage access method Pending JPS6423351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179589A JPS6423351A (en) 1987-07-18 1987-07-18 Increasing system for maximum capacity of key-based data set of virtual storage access method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179589A JPS6423351A (en) 1987-07-18 1987-07-18 Increasing system for maximum capacity of key-based data set of virtual storage access method

Publications (1)

Publication Number Publication Date
JPS6423351A true JPS6423351A (en) 1989-01-26

Family

ID=16068370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179589A Pending JPS6423351A (en) 1987-07-18 1987-07-18 Increasing system for maximum capacity of key-based data set of virtual storage access method

Country Status (1)

Country Link
JP (1) JPS6423351A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532905A (en) * 1994-07-19 1996-07-02 Analog Devices, Inc. Thermally enhanced leadframe for packages that utilize a large number of leads
US7085787B2 (en) 2002-07-19 2006-08-01 International Business Machines Corporation Capturing data changes utilizing data-space tracking
US7146373B2 (en) 2002-07-19 2006-12-05 International Business Machines Corporation Data-space tracking with index data-spaces and data data-spaces

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532905A (en) * 1994-07-19 1996-07-02 Analog Devices, Inc. Thermally enhanced leadframe for packages that utilize a large number of leads
US7085787B2 (en) 2002-07-19 2006-08-01 International Business Machines Corporation Capturing data changes utilizing data-space tracking
US7146373B2 (en) 2002-07-19 2006-12-05 International Business Machines Corporation Data-space tracking with index data-spaces and data data-spaces
US7502800B2 (en) 2002-07-19 2009-03-10 International Business Machines Corporation Method of capturing data changes utilizing data-space tracking
US8200664B2 (en) 2002-07-19 2012-06-12 International Business Machines Corporation Program for capturing data changes utilizing data-space tracking
US8200665B2 (en) 2002-07-19 2012-06-12 International Business Machines Corporation Method, apparatus, and program for capturing data changes utilizing data-space tracking

Similar Documents

Publication Publication Date Title
Bayer et al. Organization and maintenance of large ordered indices
SG42807A1 (en) Concurrent record access database system
EP0303231A3 (en) Method and device for enabling concurrent access of indexed sequential data files
EP0251056A3 (en) Cache tag lookaside
GR3005888T3 (en)
EP0352447A3 (en) Virtual lookaside means and method
TW371333B (en) CAM accelerated buffer management
DE3688738T2 (en) PATTERN-ADDRESSABLE STORAGE.
EP0336548A3 (en) Supporting long fields of recoverable database records in a computer system
JPS6423351A (en) Increasing system for maximum capacity of key-based data set of virtual storage access method
JPS5622172A (en) Retrieving device for picture information
JPS6455641A (en) Subsidiary index system
JPS5534314A (en) Key memory system
JPS6425235A (en) Overlaying form managing device
JPS63189934A (en) Sub-entry processing system for data base
JPH0962696A (en) Data base managing system
Wight The EMAS Archiving Program
JPS6442730A (en) Document storing and managing system
JPS55135950A (en) Data processing system
MACY A general purpose scatter storage subsystem and a comparison of hashing methods[M. S. Thesis]
JPS5622174A (en) Retrieving device for picture information
JPS5794840A (en) Record storing system of file device
SINGHANIA A multiple associative-memory system for pipelining a directory to a very large data base[Ph. D. Thesis]
Foster Sorting almost ordered arrays
JPS6358556A (en) File system