'Leaf page' presentation slideshows

Leaf page - PowerPoint PPT Presentation

B+ Trees

B+ Trees

B+ Trees. Similar to B trees, with a few slight differences All data is stored at the leaf nodes ( leaf pages ); all other nodes ( index pages ) only store keys Leaf pages are linked to each other Keys may be duplicated; every key to the right of a particular key is >= to that key.

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431 views • 31 slides
B+ Trees

B+ Trees

B+ Trees. Similar to B trees, with a few slight differences All data is stored at the leaf nodes ( leaf pages ); all other nodes ( index pages ) only store keys Leaf pages are linked to each other Keys may be duplicated; every key to the right of a particular key is >= to that key.

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380 views • 31 slides
Tree-Structured Indexes

Tree-Structured Indexes

Tree-Structured Indexes. Chapter 10. Introduction. Indexes is access structures which are used to speed up the retrieval of records in respond to a query. Index fields are used to construct index.

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392 views • 28 slides
CS3223 Tutorial 8

CS3223 Tutorial 8

CS3223 Tutorial 8. Fan Qi fan.qi@nus.edu.sg Database Lab 1, com1 #01-08. Query Optimization. Similar to other optimization Optimize by search Two main factor: Search Space: how many candidates Evaluation function : how to judge which candidate is good. Search Space. Query Plan.

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313 views • 19 slides
30 August 2012 ? Bell Ringer

30 August 2012 ? Bell Ringer

30 August 2012 ? Bell Ringer. Please get out your notes on the Magna Carta , the English Bill of Rights, the Mayflower Compact, and Common Sense from yesterday. Please spend the first five minutes of class writing questions into your cues column.

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211 views • 10 slides

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