Yin-he Jiang

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Performance is a major issue in the acceptance of object-oriented database management systems (OODBMS). The nested index and path index schemes have been criticized for their heavy costs and poor handling of update operations. This paper re-evaluates three index schemes (nested index, path index, and multi-index) applicable to queries on nested attributes.(More)
We describe the model and implementation of two approaches for method execution in distributed object query processing. The first approach is the traditional data migration approach in which remote data accesses (if required) are made to compose an in-memory object at the query site which is followed by method invocation on this object. The second approach(More)
Raid is a distributed database transaction processing system. This research is an attempt at porting and running the various modular component of the Raid software on parallel processors and conduct a series of measurements that measure the performance of transaction processing. The parallel version of Raid called P-Raid is implemented on Sequent/Symmetry(More)
1'0 submit. Jar public(/./.ion "'1. We present the clesigll and implementation of a dist.ributed object based database system, called O-Raid. O-Raid design embodies the extellsion of.\.U exisl.ing distributed relational database system called Raid, to provide support for Rbstract <Ia.ta types. Our design and implementation 7'i'1.IJ,eS relational database(More)
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