37、De-Nesting Queries in Object-Oriented Databases

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于 2025-06-18 09:53:03 发布

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分类专栏：解析《数据库编程语言》：前沿与实践文章标签： object-oriented databases nested queries query optimization

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De-Nesting Queries in Object-Oriented Databases

1. Introduction

In the realm of database management systems, object-oriented databases (OODBs) offer a powerful paradigm for handling complex data structures. One of the challenges faced in OODBs is the execution of nested queries, which can significantly impact performance due to their inherent complexity. This article explores the concept of de-nesting queries in object-oriented databases, discussing various algorithms and techniques aimed at improving query performance and efficiency.

Why De-Nesting?

Nested queries, where one query is embedded within another, can lead to inefficient execution plans and increased computational overhead. De-nesting involves transforming these complex nested q