Record deletion - PowerPoint PPT Presentation

Indexing

Indexing. Overview. An index is a table containing a list of keys associated with a reference field pointing to the record where the information referenced by the key can be found. An index lets you impose order on a file without rearranging the file.

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CpSc 3220 File and Database Processing

CpSc 3220 File and Database Processing. Hashing. Exercise – Build a B + - Tree. Construct an order-4 B + -tree for the following set of key values: (2, 3, 5, 7, 11, 17, 9 , 6, 29, and 4) Assume the tree is initially empty and values are added in ascending order.

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308 views • 19 slides

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