β Scribed by Thomas A. Mueck, Martin L. Polaschek (auth.)
No coin nor oath required. For personal study only.
Object-oriented database management systems (OODBMS) are used to impleΒ ment and maintain large object databases on persistent storage. Regardless whether the underlying database model follows the object-oriented, the relaΒ tional or the object-relational paradigm, a key feature of any DBMS product is content based access to data sets. On the one hand this feature provides user-friendly query interfaces based on predicates to describe the desired data. On the other hand it poses challenging questions regarding DBMS design and implementation as well as the application development process on top of the DBMS. The reason for the latter is that the actual query performance depends on a technically meaningful use of access support mechanisms. In particular, if chosen and applied properly, such a mechanism speeds up the execution of predicate based queries. In the object-oriented world, such queries may involve arbitrarily complex terms referring to inheritance hierarchies and aggregation paths. These features are attractive at the application level, however, they increase the complexity of appropriate access support mechanisms which are known to be technically non-trivial in the relational world.
Front Matter....Pages i-viii
Introduction....Pages 1-6
Database Model....Pages 7-28
Data Structures and Indexing....Pages 29-84
Type Hierarchy Indexing....Pages 85-122
Aggregation Path Indexing....Pages 123-140
Collection Operations....Pages 141-150
Performance Analysis β An Example....Pages 151-164
Back Matter....Pages 165-177
Data Structures, Cryptology and Information Theory; Data Structures; Information Storage and Retrieval; Multimedia Information Systems
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i paid for an expedite mail service and never arrived on time. this caused me to drop my class since i didn't have a book to read.
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