JPS6413646A - Index maintenance system for file with plural indexes - Google Patents
Index maintenance system for file with plural indexesInfo
- Publication number
- JPS6413646A JPS6413646A JP62170059A JP17005987A JPS6413646A JP S6413646 A JPS6413646 A JP S6413646A JP 62170059 A JP62170059 A JP 62170059A JP 17005987 A JP17005987 A JP 17005987A JP S6413646 A JPS6413646 A JP S6413646A
- Authority
- JP
- Japan
- Prior art keywords
- sorting
- file
- index
- data
- input
- 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
Links
Abstract
PURPOSE:To shorten time required for maintenance of indexes by collectively sorting data of plural indexes based on the classification code of an indexed transaction file to minimize the number of input/output operations of the transaction file accompanied with maintenance of indexes. CONSTITUTION:Data of the index of inputted transaction data is converted in accordance with the attribute of data to regenerate a converted record, and this record is stored in an external storage device 6 as an input file 7 for sorting. After all transaction data are converted and are stored in the input file 7 for sorting, the sorting processing is performed and plural index parts are generated for each index in accordance with an output file obtained as the result of this processing. Consequently, it is unnecessary to generate plural input files for sorting by reading in transaction data for each index to perform the sorting processing plural times in the conventional manner. Thus, the number of input/output operations of the external storage device 6 is reduced to shorten the processing time by this reduction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170059A JPS6413646A (en) | 1987-07-07 | 1987-07-07 | Index maintenance system for file with plural indexes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170059A JPS6413646A (en) | 1987-07-07 | 1987-07-07 | Index maintenance system for file with plural indexes |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6413646A true JPS6413646A (en) | 1989-01-18 |
Family
ID=15897862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170059A Pending JPS6413646A (en) | 1987-07-07 | 1987-07-07 | Index maintenance system for file with plural indexes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6413646A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02190971A (en) * | 1989-01-20 | 1990-07-26 | Nec Corp | Index updating system |
US7693610B2 (en) | 2001-07-10 | 2010-04-06 | Yingco Electronic Inc. | Remotely controllable wireless energy control unit |
US11245965B2 (en) | 2008-05-29 | 2022-02-08 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
-
1987
- 1987-07-07 JP JP62170059A patent/JPS6413646A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02190971A (en) * | 1989-01-20 | 1990-07-26 | Nec Corp | Index updating system |
US7693610B2 (en) | 2001-07-10 | 2010-04-06 | Yingco Electronic Inc. | Remotely controllable wireless energy control unit |
US7925388B2 (en) | 2001-07-10 | 2011-04-12 | Yingco Electronics, Inc. | Remotely controllable wireless energy control unit |
US11245965B2 (en) | 2008-05-29 | 2022-02-08 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
US11689768B2 (en) | 2008-05-29 | 2023-06-27 | Rovi Guides, Inc. | Systems and methods for alerting users of the postponed recording of programs |
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