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- W1978619679 abstract "The problem of query optimization in object-oriented databases is addressed. We follow the Stack-Based Approach to query languages, which employs the naming-scoping-binding paradigm of programming languages rather than traditional database concepts such as relational/object algebras or calculi. The classical environment stack is a semantic basis for definitions of object query operators, such as selection, projection/navigation, dependent join, and quantifiers. We describe a general object data model and define a formalized OQL-like query language SBQL. Optimization by rewriting concerns queries containing so-called independent subqueries. It consists in detecting them and then factoring outside loops implied by query operators. The idea is based on the formal static analysis of scoping rules and binding names occurring in a query. It is more general than the classical pushing selections/projections before joins." @default.
- W1978619679 created "2016-06-24" @default.
- W1978619679 creator A5002806809 @default.
- W1978619679 creator A5090964725 @default.
- W1978619679 date "2000-12-01" @default.
- W1978619679 modified "2023-09-23" @default.
- W1978619679 title "Object query optimization through detecting independent subqueries" @default.
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- W1978619679 doi "https://doi.org/10.1016/s0306-4379(00)00031-4" @default.
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