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A Simple Query Facility for the Objectivity/DB Persistent Object Manager
| Content Provider | Semantic Scholar |
|---|---|
| Author | Koch, Christoph |
| Copyright Year | 1999 |
| Abstract | The query facility, which will be called OQL’ in the following, satisfies a practical need. The Objectivity Persistent Object Manager, which is used at CERN in several projects for its low-overhead support o persistency, provides as its sole way to dynamically query data without writing a specialized application p a facility called SQL++. The query language of this facility has several restrictions which make it unsuit mining practical object-oriented databases. Among other things, it does not allow to follow associations a not provide access to arrays/aggregations of values. Furthermore, as of release 5.0 of the Objectivity products, it is not very reliable and often leads to critical application errors when complex database schem accessed which contain many of the unsupported design elements. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://home.cern.ch/~chkoch/download/oql0.pdf |
| Alternate Webpage(s) | http://chkoch.home.cern.ch/chkoch/download/oql0.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
