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Chapter 14. Federated Planning
14.1. Federated Planning 复制链接链接已复制到粘贴板!
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At the core of JBoss Data Virtualization is a federated relational query engine. This query engine allows you to treat all of your data sources as one virtual database and access them in a single SQL query. This allows you to focus on building your application, rather than on manually coding joins, and other relational operations, between data sources.