JPS5694433A - Decentralized data base control system - Google Patents
Decentralized data base control systemInfo
- Publication number
- JPS5694433A JPS5694433A JP17337079A JP17337079A JPS5694433A JP S5694433 A JPS5694433 A JP S5694433A JP 17337079 A JP17337079 A JP 17337079A JP 17337079 A JP17337079 A JP 17337079A JP S5694433 A JPS5694433 A JP S5694433A
- Authority
- JP
- Japan
- Prior art keywords
- data base
- request
- update request
- update
- buffer
- 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)
- Information Transfer Between Computers (AREA)
Abstract
PURPOSE:To reduce overhead, by decentralizing the data base to plural systems and by transmitting update request, update data, and reference request connected to the stack queue to the other processor when the application program of one processor refers to the data base. CONSTITUTION:In respect to the update macro of the data base of application program 4 of own system 1, it is checked by access module 5 whether the data base exists in its own system or not; and if it does not exist in its own system and is update request, update request is generated in buffer 6. Next, the reference macro from program 4 is checked by module 5; and if the data base of the macro belongs to another system and the reference system, reference request is generated in buffer 6. It is checked whether update request is connected to the stack queue or not; and if update request exists in the stack queue, update request and reference request are stored in buffer 7 of another system 2 simultaneously through communication bus 9, and thus, overhead in communication is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17337079A JPS5694433A (en) | 1979-12-27 | 1979-12-27 | Decentralized data base control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17337079A JPS5694433A (en) | 1979-12-27 | 1979-12-27 | Decentralized data base control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5694433A true JPS5694433A (en) | 1981-07-30 |
Family
ID=15959129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17337079A Pending JPS5694433A (en) | 1979-12-27 | 1979-12-27 | Decentralized data base control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5694433A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63217438A (en) * | 1987-03-05 | 1988-09-09 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Computer system |
-
1979
- 1979-12-27 JP JP17337079A patent/JPS5694433A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63217438A (en) * | 1987-03-05 | 1988-09-09 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Computer system |
JPH0542018B2 (en) * | 1987-03-05 | 1993-06-25 | Ibm |
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