Search on a heap file, Data Structure & Algorithms

Assignment Help:

Consider the file "search_2013". This is a text file containingsearch key values; each entry is a particular ID (in the schema given above). You are tosimulate searching over a heap file, with different assumptions for the size of file pages.Write a program to perform equality search operations. The executable name of this program must be sHeap and it mustbe able to be executed using the command:

> ./sHeap search_2013 heap pagesize

where search_2013 is the name of the file containing the keys to be searched for; heap is theoutput file of your wHeap program; and pagesize is an integer value that specifies the size ofthe disk page that you are simulating.

Your program should read in the file, one "page" at a time. For example, if the pagesize

parameter is 100, your program should read in the first 100 records from disk. These can thenbe scanned, in-memory, for a match. If a match is found, print the matching record to stdout.You should assume that ID is a primary key. If no match is found, read in the next pagesizerecords of the file. The process should continue until either a matching record is found, or thereare no more records in the file to process.

If a match is found, the program must print the matching record to stdout. If no match is

found, a suitable message should be printed. In addition, the program must always output thetotal time taken to do all the search operations in milliseconds to stdout. For example, if thetime taken to do the reading is 123:45 ms, the output would be:Time: 123.45 ms


Related Discussions:- Search on a heap file

What do you understand by structured programming, What do you understand by...

What do you understand by structured programming Structured Programming  This term is used for programming design that emphasizes:- (1) Hierarchical design of programmi

Total impedent of the circuit, an electrical student designed a circuit in...

an electrical student designed a circuit in which the impedence in one part of a series circuit is 2+j8 ohms and the impedent is another part of the circuit is 4-j60 ohm mm program

Breadth-first search, Breadth-first search starts at a given vertex h, whic...

Breadth-first search starts at a given vertex h, which is at level 0. In the first stage, we go to all the vertices that are at the distance of one edge away. When we go there, we

Multidimensional array, Q. The system allocates the memory for any of the m...

Q. The system allocates the memory for any of the multidimensional array from a big single dimensional array. Describe two mapping schemes that help us to store the two dimensi

Branch and Bound method, give some examples of least cost branch and bound ...

give some examples of least cost branch and bound method..

Determine about the logic gates, Determine about the logic gates Many e...

Determine about the logic gates Many electronic circuits operate using binary logic gates. Logic gates essentially process signals that represent true or false or equivalent i.

Define the internal path length, Define the Internal Path Length The In...

Define the Internal Path Length The Internal Path Length I of an extended binary tree is explained as the sum of the lengths of the paths taken over all internal nodes- from th

Amortized algorithm analysis, In the amortized analysis, the time needed to...

In the amortized analysis, the time needed to perform a set of operations is the average of all operations performed. Amortized analysis considers as a long sequence of operations

Explain the concept of colouring, Colouring The use of colours in CAD/C...

Colouring The use of colours in CAD/CAM has two main objectives : facilitate creating geometry and display images. Colours can be used in geometric construction. In this case,

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