'Variable sized data entries' presentation slideshows

File Organizations and Indexing

File Organizations and Indexing. "If you don't find it in the index, look very carefully through the entire catalogue." -- Sears, Roebuck, and Co., Consumer's Guide, 1897. Lecture 5 R&G Chapter 8. Administrivia. Homework 1 Assignment now Available

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Storage and Indexing

Storage and Indexing. Storage and Indexing. How do we store efficiently large amounts of data? The appropriate storage depends on what kind of accesses we expect to have to the data. We consider: primary storage of the data additional indexes (very very important).

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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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File Organizations and Indexing

File Organizations and Indexing. "If you don't find it in the index, look very carefully through the entire catalogue." -- Sears, Roebuck, and Co., Consumer's Guide, 1897. R&G Chapter 8. Context. Query Optimization and Execution. Relational Operators. Files and Access Methods.

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File Organizations and Indexing

257 views • 25 slides

File Organizations and Indexing

File Organizations and Indexing. "If you don't find it in the index, look very carefully through the entire catalogue." -- Sears, Roebuck, and Co., Consumer's Guide, 1897. Lecture 4 R&G Chapter 8. Context. Query Optimization and Execution. Relational Operators.

307 views • 24 slides

File Organizations and Indexing

File Organizations and Indexing. "If you don't find it in the index, look very carefully through the entire catalogue." -- Sears, Roebuck, and Co., Consumer's Guide, 1897. Lecture 4 R&G Chapter 8. Context. Query Optimization and Execution. Relational Operators.

243 views • 24 slides

File Organizations and Indexing

File Organizations and Indexing. Alternative File Organizations. Many alternatives exist, each ideal for some situation , and not so good in others: Heap files: Suitable when typical access is a file scan retrieving all records.

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File Organizations and Indexing

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File Organizations and Indexing

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File Organizations and Indexing

269 views • 15 slides

B+-Trees

B+-Trees. Storage Technology: Topic 5. B+ Tree: Features. Insert/delete at log F N cost; keep tree height-balanced . (F = fanout, N = # leaf pages)

233 views • 15 slides

B+-Trees

B+-Trees. Storage Technology: Topic 5. B+ Tree: Features. Insert/delete at log F N cost; keep tree height-balanced . (F = fanout, N = # leaf pages)

298 views • 15 slides

File Organizations and Indexing

154 views • 15 slides