GAV-sound with conjunctive queries • Source and global schema as before: ◦ source R1(A, B), R2(B, C) ◦ Global schema: T1(A, C), T2(B, C) • GAV mappings become sound: - Database schema - Document - PDFSEARCH.IO

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	GAV-sound with conjunctive queries • Source and global schema as before: ◦ source R1(A, B), R2(B, C) ◦ Global schema: T1(A, C), T2(B, C) • GAV mappings become sound: Add to Reading List Document Date: 2008-10-21 09:17:48 Open Document File Size: 142,39 KB Share Result on Facebook IndustryTerm sound solution / / Position General / / SocialTag Formal languages Rewriting Mathematics Information Computer science Conjunctive query Database theory Data integration

GAV-sound with conjunctive queries • Source and global schema as before: ◦ source R1(A, B), R2(B, C) ◦ Global schema: T1(A, C), T2(B, C) • GAV mappings become sound:Add to Reading List