Explain about aggregations, Computer Engineering

Assignment Help:

OLAP can process difficult queries and give the output in less than 0.1 seconds, for it to achieve like performance OLAP uses aggregations. Aggregations are built by aggregating and changing the data with the dimensions. Possible combination of aggregations can be determined by the combination possibilities of dimension granularities. 

 


Related Discussions:- Explain about aggregations

Illustrate process of swapping system, What does the swapping system do if ...

What does the swapping system do if it identifies the illegal page for swapping? If the disk block descriptor does not have any record of the faulted page, then this causes the

Prolog programming language - artificial intelligence, Prolog Programming L...

Prolog Programming Language - Artificial intelligence: Most of the programming languages are procedural: the programmer specifies exactly the correct instructions (algorithms)

How does VB.NET achieve polymorphism, How does VB.NET/C# achieve polymorphi...

How does VB.NET/C# achieve polymorphism?  VB.Net / C# give polymorphism through the following mechanisms: 1. Inheritance - base class gives overridable methods which are re-

Explain design of adder, Q. Explain Design of adder? Adders play one of...

Q. Explain Design of adder? Adders play one of the most significant roles in binary arithmetic. As a matter of fact fixed point addition is frequently used as a simple measure

What is exact and approximation algorithm, What is Exact and Approximation ...

What is Exact and Approximation algorithm? The principal decision to choose solving the problem exactly is called exact algorithm. The   principal decision to choose solving th

Explain about hyper-threading, Q. Explain about Hyper-threading? Non th...

Q. Explain about Hyper-threading? Non threaded program instructions are executed in a single order at a time until the program completion. Presume a program have four tasks nam

Evaluate 23 - 48 using the 2's complement method, Perform the 23 - 48 opera...

Perform the 23 - 48 operations using the 2's complement method. Ans. Given 23 - 48 firstly add them       23                         0 1 0 1 1 1 - (- 48)                     +

How do we save a selected sub-image to a file in gimp, Use "Edit->Paste As-...

Use "Edit->Paste As->New Image" menu command or press Ctrl-Shift-V key combination, then save newly created image.The script-fu-selection-to image can also be used to cut a selecti

What are the steps in multiplication algorithm, What are the steps in multi...

What are the steps in multiplication algorithm?   Check for zeros.   Multiply mantissas   Add the exponents.   Normalize the product.

Voice identifier - biometric computer security systems, Voice Identifier - ...

Voice Identifier - Biometric Computer Security Systems Besides fingerprint, another popular security technology is voice identifier. According to VSS organization (2007), voic

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