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Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?
- a)Database relations have a large number of records
- b)Database relations are sorted on the primary key
- c)Data transfer form disks are in blocks.
- d)B-trees require less memory than binary search trees
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following is a key factor for preferring B-trees to b...
A disk block contains a fairly large number of keys. Unlike BST where each node contains only one key, B-Tree is designed to contain a large number of keys so that tree height is small.
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Which one of the following is a key factor for preferring B-trees to b...
Key Factor for Preferring B-trees over Binary Search Trees for Indexing Database Relations
B-trees are commonly used data structures for indexing database relations. They are preferred over binary search trees due to several reasons. One of the key factors for preferring B-trees over binary search trees for indexing database relations is:
B-trees are commonly used data structures for indexing database relations. They are preferred over binary search trees due to several reasons. One of the key factors for preferring B-trees over binary search trees for indexing database relations is:
Data Transfer from Disks are in Blocks
● When the data is stored in a database, it is usually stored on disks. The data transfer from disks to memory is done in blocks. A block is a fixed-size unit of data that is read from or written to the disk in a single operation. For example, a block can be 4KB or 8KB in size, depending on the disk and the operating system.
● B-trees are designed to work efficiently with disk blocks. Each node of a B-tree can hold multiple keys and pointers, which means that a single disk block can store multiple nodes of a B-tree. This reduces the number of disk accesses required to search for a key in the tree. In contrast, binary search trees have only two pointers per node, which means that a single disk block can store only a single node of a binary search tree.
● Therefore, B-trees require fewer disk accesses than binary search trees for the same amount of data. This makes them more efficient for indexing large database relations that are stored on disks.
Conclusion
In conclusion, B-trees are preferred over binary search trees for indexing database relations due to several reasons, including their ability to work efficiently with disk blocks. B-trees can store multiple nodes in a single disk block, which reduces the number of disk accesses required to search for a key in the tree. This makes them more efficient for indexing large database relations that are stored on disks.
● When the data is stored in a database, it is usually stored on disks. The data transfer from disks to memory is done in blocks. A block is a fixed-size unit of data that is read from or written to the disk in a single operation. For example, a block can be 4KB or 8KB in size, depending on the disk and the operating system.
● B-trees are designed to work efficiently with disk blocks. Each node of a B-tree can hold multiple keys and pointers, which means that a single disk block can store multiple nodes of a B-tree. This reduces the number of disk accesses required to search for a key in the tree. In contrast, binary search trees have only two pointers per node, which means that a single disk block can store only a single node of a binary search tree.
● Therefore, B-trees require fewer disk accesses than binary search trees for the same amount of data. This makes them more efficient for indexing large database relations that are stored on disks.
Conclusion
In conclusion, B-trees are preferred over binary search trees for indexing database relations due to several reasons, including their ability to work efficiently with disk blocks. B-trees can store multiple nodes in a single disk block, which reduces the number of disk accesses required to search for a key in the tree. This makes them more efficient for indexing large database relations that are stored on disks.
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Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer?
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Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer?.
Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which one of the following is a key factor for preferring B-trees to binary search trees for indexing database relations?a)Database relations have a large number of recordsb)Database relations are sorted on the primary keyc)Data transfer form disks are in blocks.d)B-trees require less memory than binary search treesCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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