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| Description |
Kappa was a parallel DBMS designed for knowledge information processing (KIPS). The name Kappa is an acronym for **K**nowledge **APP**lication oriented **A**dvanced DBMS.
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Kappa was a parallel DBMS designed for knowledge information processing (KIPS). The name Kappa is an acronym for **K**nowledge **APP**lication oriented **A**dvanced DBMS.
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| History |
Kappa was developed as part of the the "Fifth Generation Computer Systems" initiative in the 1980s by Japan's Ministry of International Trade and Industry (MITI) to create computers using massively parallel computing and logic programming.
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Kappa was developed as part of the the "Fifth Generation Computer Systems" initiative in the 1980s by Japan's Ministry of International Trade and Industry (MITI) to create computers using massively parallel computing and logic programming.
The last version of Kappa was released in 1999.
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| Start Year | 1989 | 1989 |
| End Year | — | 1999 |
| Twitter URL | — | — |
| Countries | Japan | Japan |
| Former Names | — | — |
| Website URL | https://www.airc.aist.go.jp/aitec-icot/ICOT/Museum/SOFTWARE/KAPPA/outline-E.html | https://www.airc.aist.go.jp/aitec-icot/ICOT/Museum/SOFTWARE/KAPPA/outline-E.html |
| Docs URL | https://www.airc.aist.go.jp/aitec-icot/ICOT/Museum/SOFTWARE/KAPPA/pdst-E/pdst-E.html | https://www.airc.aist.go.jp/aitec-icot/ICOT/Museum/SOFTWARE/KAPPA/pdst-E/pdst-E.html |
| Source Repo URL | — | https://www.airc.aist.go.jp/aitec-icot/ICOT/Museum/IFS/abst/087.html |
| Blog URL | — | — |
| Wikipedia URL | — | — |
| Tags | — | — |
| Licenses |
Proprietary
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Proprietary
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| Operating Systems | — |
Solaris
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| Governance | — | — |
| Project Types |
Industrial Research
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Industrial Research
Open Source
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| Supported Languages | — | — |
| Written In | — |
C
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| Coding Agents | — | — |
| Developer Orgs |
Institute for New Generation Telecommunications
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| Derived From | — | — |
| Embedded Systems | — | — |
| Inspired By | — | — |
| Compatible With | — | — |
| Hosted Services | — | — |
| Acquisitions | — | — |
| Checkpoints | — | — |
| Compression | — | — |
| Concurrency Control | — | — |
| Data Model |
Relational
Kappa uses a "nested relational model" that is similar to the document model in that it supported non-scalar values (e.g., arrays, nested records). It is seen as a precursor to object-relational model.
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Relational
Kappa uses a "nested relational model" that is similar to the document model in that it supported non-scalar values (e.g., arrays, nested records). It is seen as a precursor to object-relational model.
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| Fault Tolerance | — | — |
| Foreign Keys | — | — |
| Hardware Acceleration | — | — |
| Indexes | — | — |
| Isolation Levels | — | — |
| Joins | — | — |
| Logging | — | — |
| Parallel Execution |
Intra-Operator (Horizontal)
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Intra-Operator (Horizontal)
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| Query Compilation | — | — |
| Query Execution | — | — |
| Query Interface |
Custom API
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Custom API
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| Storage Architecture | — | — |
| Storage Format | — | — |
| Storage Model | — | — |
| Storage Organization | — | — |
| Stored Procedures | — | — |
| System Architecture |
Shared-Nothing
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Shared-Nothing
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| User-Defined Functions | — | — |
| Views | — | — |