KR940017571A - Database Schema Management Method for Generation of Distributed Relations in Electronic Switching System - Google Patents
Database Schema Management Method for Generation of Distributed Relations in Electronic Switching System Download PDFInfo
- Publication number
- KR940017571A KR940017571A KR1019920024213A KR920024213A KR940017571A KR 940017571 A KR940017571 A KR 940017571A KR 1019920024213 A KR1019920024213 A KR 1019920024213A KR 920024213 A KR920024213 A KR 920024213A KR 940017571 A KR940017571 A KR 940017571A
- Authority
- KR
- South Korea
- Prior art keywords
- schema
- processor
- distributed
- change
- data change
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
본 발명은 시스팀의 운용중에 질의어를 통해 요구되는 분산 릴레이션의 생성이 온 라인에서 가능하도록 교환기 시스팀 데이타베이스의 스키마를 관리해줌으로써 사용자의 기능 개발을 편하게 하고, 기능의 시스팀 적용 시간을 단축하며 기능 추가에 관계없이 시스팀의 지속적인 서비스가 가능하도록 하는데 그 목적을 두고 있다.The present invention manages the schema of the exchange system database so that the generation of the distributed relations required through the query during the operation of the system can be performed on-line, thereby facilitating the user's function development, reducing the system application time of the function, and adding the function. The goal is to enable continuous service of the system regardless.
본 발명은 데이타베이스 질의어로 분산 릴레이션의 생성 요구가 발생하면 데이타 변경과 관련된 각 프로세서들의 스키마 관리기에게 데이타 변경에 따른 메모리 할당등이 가능한가 여부를 묻고 가능하다는 응답 메지시가 오면 다시 각 프로세서들의 스키마 관리기에서 질의어를 통해 입수되었던 데이타 변경 정보를 전송하며, 각 프로세서들의 스키마 관리기에서는 전송된 정보에 따스 스키마의 생성을 수행하고 분산 테이블을 작성한다. 각각의 수행이 모두 성공이면 스키마 변경중에 발생한 로그내용에 따라 디스크에 백업을 하며, 하나의 프로세서라도 스키마 변경에 실패를 하게되면 나머지 프로세서들은 로그 내용을 참조하여 스키마를 복구하고 종료 하는 처리과정으로 이루어진다.When a request for generating a distributed relation is generated by a database query, the present invention asks the schema manager of each processor related to the data change whether the memory allocation according to the data change is possible or not. Transmits the data change information acquired through the query in the schema. The schema manager of each processor generates the schema according to the transmitted information and creates the distribution table. If each execution is successful, backup is made to disk according to the log contents occurred during schema change. If even one processor fails schema change, the other processors refer to the log contents to recover and terminate the schema. .
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제 1 도는 본 발명의 내용을 포함하는 전전자 교환기 데이타베이스 관리시스템의 분산 구조도, 제 2 도는 스키마 관리 기능을 구현하기 위한 블럭간의 구성과 메시지 흐름을 나타내는 구조도, 제 3 도는 본 발명의 분산 릴레이션의 생성에 대한 스키마 관리의 전체적인 흐름도.FIG. 1 is a distributed structure diagram of an electronic switchgear database management system including the contents of the present invention, FIG. 2 is a structure diagram showing the structure and message flow between blocks for implementing a schema management function, and FIG. 3 is a distributed structure of the present invention. Overall flow of schema management for creating relations.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920024213A KR950010485B1 (en) | 1992-12-14 | 1992-12-14 | Db skima management method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920024213A KR950010485B1 (en) | 1992-12-14 | 1992-12-14 | Db skima management method |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940017571A true KR940017571A (en) | 1994-07-26 |
KR950010485B1 KR950010485B1 (en) | 1995-09-18 |
Family
ID=19345513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920024213A KR950010485B1 (en) | 1992-12-14 | 1992-12-14 | Db skima management method |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950010485B1 (en) |
-
1992
- 1992-12-14 KR KR1019920024213A patent/KR950010485B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950010485B1 (en) | 1995-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Ladin et al. | Providing high availability using lazy replication | |
EP0191036B1 (en) | Database backup method | |
NO952248D0 (en) | Database backup system | |
EP0722236A3 (en) | System and method for fault tolerant key management | |
US8250313B1 (en) | Conflict avoidance in data store replication | |
EP1577776A1 (en) | Method and apparatus for data synchronization in a distributed data base system | |
Elnozahy | On the relevance of communication costs of rollback-recovery protocols | |
CN101192214B (en) | Processing method for EMS memory data-base content variation real time notification task | |
KR940017571A (en) | Database Schema Management Method for Generation of Distributed Relations in Electronic Switching System | |
CA2244006A1 (en) | A process and apparatus for reducing software failures using sparing in distributed systems | |
KR930009854B1 (en) | Database backing-up & restoring method | |
KR940017575A (en) | Database Schema Management Method for Generation of Duplicate Relations in Electronic Switching System | |
KR940007843B1 (en) | Schema managing method on dbms | |
KR950005987B1 (en) | Maintenance system in electronic exchange | |
KR950010486B1 (en) | Real-time database management system | |
KR0123193B1 (en) | Distribute real time data base output method | |
KR950009439A (en) | How to Implement Backup Function in Real-Time Database Management System (DBMS) | |
KR960003974B1 (en) | Data back-up method for electronic switching system | |
KR950009431B1 (en) | The inquiry window treatment method ina real-time database management system | |
Gianuzzi et al. | Using PVM to implement a distributed dependable simulation system | |
KR970072899A (en) | Message Control Method in Agent of Telecommunication Management Network | |
CN114090545A (en) | Method, apparatus, storage medium, and program product for maintaining distributed database | |
KR930014132A (en) | Transaction recovery method of real-time database management system (DBMS) | |
KR940007839B1 (en) | Method of processing transaction on real time database management system | |
Lee et al. | Commit-order oriented validation scheme for transaction scheduling in mobile distributed database systems: COOV |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
N231 | Notification of change of applicant | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19980616 Year of fee payment: 4 |
|
LAPS | Lapse due to unpaid annual fee |