JPS57134751A - Constituting methode for data base computer - Google Patents

Constituting methode for data base computer

Info

Publication number
JPS57134751A
JPS57134751A JP56019304A JP1930481A JPS57134751A JP S57134751 A JPS57134751 A JP S57134751A JP 56019304 A JP56019304 A JP 56019304A JP 1930481 A JP1930481 A JP 1930481A JP S57134751 A JPS57134751 A JP S57134751A
Authority
JP
Japan
Prior art keywords
data
tuple
transfer
value
relational algebraic
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
JP56019304A
Other languages
Japanese (ja)
Inventor
Yasumitsu Oda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56019304A priority Critical patent/JPS57134751A/en
Publication of JPS57134751A publication Critical patent/JPS57134751A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To perform tuple readout and relational algebraic operation in parallel, by determining the transfer address of data through the value of data hashing with uniform distribution and making the data transfer and classification at the same time. CONSTITUTION:Through the operation instruction input 1 from a main controller 2, a logical device 5 reads a tuple (element of a set) from a storage medium 3 through a data readout/write-in device 4 to deliver it to a tuple transfer address determining device 6. The device 6 makes hashing by taking the value of attribute field being the object of the relational algebraic operation as a key to determine a relational algebraic operation logical device 8 of a tuple transfer address through the value and to transfer it to a data transfer device 7. The device 7 transfers the data transmitted in parallel consecutively from the device 6 to the device 8 designated with the device 6 for the relational algebraic operation, and the data readout/write-in 10 is made via an operation result output buffer 9 and the result of operation is outputted 12.
JP56019304A 1981-02-12 1981-02-12 Constituting methode for data base computer Pending JPS57134751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019304A JPS57134751A (en) 1981-02-12 1981-02-12 Constituting methode for data base computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019304A JPS57134751A (en) 1981-02-12 1981-02-12 Constituting methode for data base computer

Publications (1)

Publication Number Publication Date
JPS57134751A true JPS57134751A (en) 1982-08-20

Family

ID=11995672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019304A Pending JPS57134751A (en) 1981-02-12 1981-02-12 Constituting methode for data base computer

Country Status (1)

Country Link
JP (1) JPS57134751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05128164A (en) * 1990-03-27 1993-05-25 Internatl Business Mach Corp <Ibm> Data base processing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05128164A (en) * 1990-03-27 1993-05-25 Internatl Business Mach Corp <Ibm> Data base processing device

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