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

Mention the various IC logic families, Mention the various IC logic familie...

Mention the various IC logic families. Ans. Different  IC Logic Families: Digital IC's are fabricated through employing either the Unipolar or the Bipolar Technologies and are te

How the canvas class and the graphics class are linked, A Canvas object giv...

A Canvas object gives access to a Graphics object by its paint() method.

Describe the operation of voltage to frequency ADC, Describe the operation ...

Describe the operation of voltage to frequency ADC. Ans: A voltage-to-frequency converter i.e. VFC is an oscillator that frequency is linearly proportional to a control volt

Explain grade of service with reference to telephone traffic, With referenc...

With reference to telephone traffic, explain the terms GOS. GOS: in loss systems, the traffic carried through the network is usually lower than the actual traffic offered to

What are the advantages and disadvantages of a smart card, What are the adv...

What are the advantages and disadvantages of a Smart Card?    Advantages of Smart Card: 1. It gives convenience & support for multiple currencies over borders. 2. Used

What do you understand by hit ratio, What do you understand by Hit ratio? ...

What do you understand by Hit ratio? When a processor refers a data item from a cache, if the referenced item is in the cache, then such a reference is called hit. If the refer

Assignment, what is an interface and perpheral device

what is an interface and perpheral device

What is the meaning of toggle in a JK flip flop, In a JK Flip-Flop, toggle ...

In a JK Flip-Flop, toggle means ? Ans. Change the output to the opposite state implies the meas of toggle, in a JK Flip-Flop.

Determine the minimum configuration of the decoder, The following switching...

The following switching functions are to be implemented using a Decoder f 1   = ∑ m(1, 2, 4, 8, 10, 14)   f 2   = ∑ m(2, 5, 9, 11)   f 3   = ∑ m(2, 4, 5, 6, 7) The minimum configur

What is scan, What is "Scan"? Scan Insertion and ATPG helps test ASICs ...

What is "Scan"? Scan Insertion and ATPG helps test ASICs (e.g. chips) during manufacture. If you know what JTAG boundary scan is, then Scan is the similar idea except that it 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