Suppose a relation is stored in a B+-tree file organization. Suppose secondary indices store record identifiers that

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Suppose a relation is stored in a B+-tree file organization. Suppose secondary indices store record identifiers that are pointers to records on disk.

a. What would be the effect on the secondary indices if a node split happened in the file organization?

b. What would be the cost of updating all affected records in a secondary index?

c. How does using the search key of the file organization as a logical record identifier solve this problem?

d. What is the extra cost due to the use of such logical record identifiers?

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Database System Concepts

ISBN: 9780078022159

7th Edition

Authors: Abraham Silberschatz, Henry F. Korth, S. Sudarshan

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Question Posted: Jun 13, 2022 07:09 AM

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Suppose a relation is stored in a B+-tree file organization. Suppose secondary indices store record identifiers that

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a When a leaf page is split in a Btree file organization a number of records are moved to a new page ...View the full answer

Database System Concepts

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