Algorithm to insert a key in b-tree, Computer Engineering

Assignment Help:

Algorithm to insert a key in B-tree is as follows:

1.  First search is completed for the place where the new record must be put. As the keys are inserted, they are sorted into the proper order.

2.  If the node can contain the new record, insert the new record at the appropriate pointer so that number of pointers remains one more than the number of records.

3.  If the node overflows due to there is an upper bound on the size of a node, splitting is needed. The node is divided into three parts; the middle record is passed upward and inserted into parent, leaving two children behind. If n is odd (n-1 keys in full node and the new target key), median key int(n/2)+1 is placed in parent node, the lower n/2 keys are put in the left leaf and the higher n/2 keys are put in the right leaf. If n is even, we might be have left biased or right biased means one key may be more in left child or right child correspondingly.

4.  Splitting may propagate up the tree because the parent, into which divided record is added, may overflow then it may be split.  If the root is needed to be split, a new record is formed with just two children.

 


Related Discussions:- Algorithm to insert a key in b-tree

Explain non-uniform memory access model (numa), Non-Uniform Memory Access M...

Non-Uniform Memory Access Model (NUMA) In shared memory multiprocessor systems, local memories are able to be connected with every processor. The collection of all local

Different possible handover scenarios in a gsm network, Problem: (a) C...

Problem: (a) Cellular systems are based on two types of multiplexing, what are those two types of multiplexing? Describe how they are used to improve channel allocation in cel

Discuss in brief the history of e-commerce, Discuss in brief the history of...

Discuss in brief the history of E-Commerce. History of E-commerce illustrated below: E-commerce began before personal computers were prevalent and has grown into a multibill

General considerations for research -artificial intelligence, General Consi...

General Considerations for Research -artificial intelligence: If we can specify the initial state, the operators or a consumer and the goal check for a search problem, that al

Explain about parallel programming environment, Q. Explain about parallel p...

Q. Explain about parallel programming environment? The parallel programming environment comprises of a debugger, an editor, performance evaluator, programme visualizer for incr

Explain the working of dynamic ram - computer memory, Explain the working o...

Explain the working of Dynamic RAM? A plain piece of hardware called a DRAM controller can be used to make DRAM behave more like SRAM and the job of the DRAM controller is to p

Serial execution and parallel execution, Serial Execution Execution of ...

Serial Execution Execution of a program consecutively, one statement at a time. In the easiest sense, this is what occurs on a one processor machine. However, even many of the

Explain the uses of keyboards, Explain the uses of Keyboards An alphanu...

Explain the uses of Keyboards An alphanumeric keyboard for a graphics system is used primarily as a device for entering text strings. Keyboards can also be provided with featur

What are the features common in most of the websites, What are the features...

What are the features common in most of the websites Following general features must be found on most web sites in one form or another (this list is by no means exhaustive):

Explain what is internal modems, Q. Explain what is Internal Modems ? I...

Q. Explain what is Internal Modems ? Internal Modems: Internal Modems plug in expansion slots in your PC. Internal Modems are efficient andcheap. Internal Modems are bus-specif

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd