JPS5731040A - Data comparison system - Google Patents

Data comparison system

Info

Publication number
JPS5731040A
JPS5731040A JP10589480A JP10589480A JPS5731040A JP S5731040 A JPS5731040 A JP S5731040A JP 10589480 A JP10589480 A JP 10589480A JP 10589480 A JP10589480 A JP 10589480A JP S5731040 A JPS5731040 A JP S5731040A
Authority
JP
Japan
Prior art keywords
block
buffer
case
coincidence
lacking
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
JP10589480A
Other languages
Japanese (ja)
Inventor
Akio Takayanagi
Tadao Kinugasa
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 JP10589480A priority Critical patent/JPS5731040A/en
Publication of JPS5731040A publication Critical patent/JPS5731040A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/22Arrangements for sorting or merging computer data on continuous record carriers, e.g. tape, drum, disc

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To easily grasp only a difference between before and after updating a data, by rearranging each block in a memory device by a key value, making key values correspond to each other, comparing them, and comparing the contents in case of coincidence of the key values. CONSTITUTION:Each block in memory devices 11, 12 is stored in work buffers 21, 22 in order of a block number by a sort function SOR. Subsequently, both buffers 21, 22 are read by 1 block each by a read device 41, and block numbers are compared by a comparison part 42. In case of coincidence, contents of these blocks are compared by a record comparison part 43, and in case a block of the buffer 22 corresponding to the buffer 21 is lacking, its block number and a character A showing supplementation are outputted to a memory device 31. On the contrary, if a block of the buffer 21 corresponding to the buffer 22 is lacking, a character D is outputted to the device 31. In this way, a difference between before and after adding, deleting, etc. a block of a data is grasped easily.
JP10589480A 1980-07-31 1980-07-31 Data comparison system Pending JPS5731040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10589480A JPS5731040A (en) 1980-07-31 1980-07-31 Data comparison system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10589480A JPS5731040A (en) 1980-07-31 1980-07-31 Data comparison system

Publications (1)

Publication Number Publication Date
JPS5731040A true JPS5731040A (en) 1982-02-19

Family

ID=14419606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10589480A Pending JPS5731040A (en) 1980-07-31 1980-07-31 Data comparison system

Country Status (1)

Country Link
JP (1) JPS5731040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977536A (en) * 1984-12-10 1990-12-11 Canon Kabushiki Kaisha Document processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977536A (en) * 1984-12-10 1990-12-11 Canon Kabushiki Kaisha Document processor

Similar Documents

Publication Publication Date Title
EP0031499A3 (en) Data processing apparatus adapted for memory readback checking
CA2237161A1 (en) Storage and retrieval of ordered sets of keys in a compact 0-complete tree
EP0340344A3 (en) Fast access priority queue
CA2136300A1 (en) Method and apparatus for storing and retrieving multi-dimensional data in computer memory
KR900003734A (en) Portable Electronic Device
GB1512713A (en) Data processing system
GB1280487A (en) Multilevel compressed index searching
KR870003430A (en) Semiconductor integrated circuit device
Nodine et al. Greed sort
FR2052419A5 (en)
GB1279056A (en) Data searching system
US3034102A (en) Data handling system
JPS5731040A (en) Data comparison system
EP0369415A3 (en) Sorting circuit
JPS6459437A (en) File compressing system
JPS57105877A (en) Stack memory device
JPS5798051A (en) Memory system of scan in/out data
JPS6428726A (en) Index management method for data base
JPS57193837A (en) Retrieval system for data record having a plurality of keys
JPS55135950A (en) Data processing system
IT967615B (en) PERFECT MEMORY ORGANIZATION BORN PARTICULARLY FOR DISK DRIVE
JPS57150028A (en) Telegram buffer control system
DE3856337D1 (en) Bit sequence compressor suitable for Boolean operations
US3034104A (en) Data switching apparatus
JPS57203172A (en) Thesaurus constituting system