JPS6464044A - Logical file processing system - Google Patents
Logical file processing systemInfo
- Publication number
- JPS6464044A JPS6464044A JP62222218A JP22221887A JPS6464044A JP S6464044 A JPS6464044 A JP S6464044A JP 62222218 A JP62222218 A JP 62222218A JP 22221887 A JP22221887 A JP 22221887A JP S6464044 A JPS6464044 A JP S6464044A
- Authority
- JP
- Japan
- Prior art keywords
- file
- logical file
- item
- virtual data
- data item
- 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
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
PURPOSE:To realize the definition of a virtual data item for a physical file to a record of a logical file, by using a means which produces the virtual data having no correspondence to the physical file based on the generating conditions defined to the logical file. CONSTITUTION:A logical file defining matter 17 is first produced by a logical file defining part 16 based on the logical file definition 14 supplied from a user. In this case, a data item X that designated a generating method in a prescribed form is defines as a virtual data item. While the data item (A.D) contained in a physical file 2, the section showing each item of the virtual data, and the generating method of the virtual data are set the matter 17 for each data item. When a reading request is given to a logical file 12 from a program 19, a logical file access part 18 refers to the matter 17 to give an access to the file 2. Then the item X is produced based on the due definition and delivered to the origin of requesting together with data items A, D.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222218A JPS6464044A (en) | 1987-09-04 | 1987-09-04 | Logical file processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222218A JPS6464044A (en) | 1987-09-04 | 1987-09-04 | Logical file processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464044A true JPS6464044A (en) | 1989-03-09 |
Family
ID=16778976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62222218A Pending JPS6464044A (en) | 1987-09-04 | 1987-09-04 | Logical file processing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464044A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5589404A (en) * | 1994-08-01 | 1996-12-31 | Lucent Technologies Inc. | Monolithically integrated VLSI optoelectronic circuits and a method of fabricating the same |
US8554582B2 (en) | 2004-10-13 | 2013-10-08 | Nissay Information Technology Co., Ltd. | Data management apparatus and method thereof |
-
1987
- 1987-09-04 JP JP62222218A patent/JPS6464044A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5589404A (en) * | 1994-08-01 | 1996-12-31 | Lucent Technologies Inc. | Monolithically integrated VLSI optoelectronic circuits and a method of fabricating the same |
US8554582B2 (en) | 2004-10-13 | 2013-10-08 | Nissay Information Technology Co., Ltd. | Data management apparatus and method thereof |
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