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

Describe the working of operating system, Write the importance of operating...

Write the importance of operating system. Describe the working methodology of online and real-time operating system with the help of two examples of each.

By which the excess-3 code of decimal 7 is represented , The excess-3 code ...

The excess-3 code of decimal 7 is represented by ? Ans. An excess 3 code of decimal 7 is equal to the binary code +3.

Cross bar-various interconnection networks-fully connected, Cross Bar ...

Cross Bar The crossbar network is the easiest interconnection network. It has a two dimensional grid of switches.  It is a non-blocking network and give connectivity among inp

What is script-fu in gimp, Sript-Fu is the first GIMP scripting extension. ...

Sript-Fu is the first GIMP scripting extension. Extensions are split processes that communicate with the GIMP in the similar way that plug-ins do. The distinction is that extension

Difference between aggregation and association, Difference between aggregat...

Difference between aggregation and association Aggregation is a particular form of association, not an independent concept. Aggregation acts semantic connotations. If two objec

First-order models, First-Order Models: Here if we proposed first-orde...

First-Order Models: Here if we proposed first-order logic as a good knowledge representation language than propositional logic is just because there is more expressive than we

Why did my jdbc code throw a rollback sqlexception, Your JDBC code may thro...

Your JDBC code may throw the following exception: "The coordinator has rolled back the transaction.No further JDBC access is permitted within this transaction." The WebLogic

Explain processing of an interrupt, Q. Explain Processing of an Interrupt? ...

Q. Explain Processing of an Interrupt? The interrupt is processed as: Step 1: Number field in INT instruction is multiplied by 4 to get its entry in interrupt vector table.

Define the role of organizationin computer architecture, Define the role of...

Define the role of organizationin computer architecture The organization is the set of resources that realizes the architecture which include the CPU, the memory and I/O contro

What is a match code, What is a Match Code? Match code is a tool to hel...

What is a Match Code? Match code is a tool to help us to find for data records in the system. Match Codes are an proficient and user-friendly search aid where key of a record i

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