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Data pages index pages - PowerPoint PPT Presentation

Tree-Structured Indexes

Tree-Structured Indexes. Introduction. As for any index, 3 alternatives for data entries k* : Data record with key value k < k , rid of data record with search key value k > < k , list of rids of data records with search key k >

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276 views • 19 slides

B+ Trees

B+ Trees. Tree-Structured Indices. Tree-structured indexing techniques support both range searches and equality searches . ISAM : static structure; B+ tree : dynamic, adjusts gracefully under inserts and deletes. Overflow. page. index entry. ISAM. P. K. P. P. K. P. K. m. 2.

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316 views • 18 slides

Tree-Structured Indexes

Tree-Structured Indexes. Module 4, Lecture 4. Introduction. As for any index, 3 alternatives for data entries k* : 1. Data record with key value k 2. < k , rid of data record with search key value k > 3. < k , list of rids of data records with search key k >

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240 views • 15 slides

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Data pages index pages - PowerPoint PPT Presentation

Tree-Structured Indexes

B+ Trees

Tree-Structured Indexes