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

Give the example of spreadsheet, Give the example of Spreadsheet By sel...

Give the example of Spreadsheet By selecting cell C1 and dragging the formula down to C5 the below formulae will be replicated in C2 to C5: (A2*B2), (A3*B3), (A4*B4) and (A5*B5

Define object oriented modelling, Object oriented modelling Object ori...

Object oriented modelling Object oriented modelling is entirely a new way of thinking about queries. This methodology is all about visualizing the things by using models organ

Computational study of a spring-mass system, Idealized spring-mass systems ...

Idealized spring-mass systems have numerous applications throughout engineering. Fig.1 shows an arrangement of three masses and four springs which, after is released, is pulled dow

Scope of expert system, The scope of the experts system is very limite...

The scope of the experts system is very limited. It cannot work outside the field it is being used. The users knowledge is required to adjust to new situation. To reduce

Determine the begin - end keywords, Determine the begin - end keywords ...

Determine the begin - end keywords Group several statements together. Cause the statements to be evaluated sequentially (one at a time) -> Any timing within sequential group

Explain opening files for reading only in c, Opening Files for Reading Only...

Opening Files for Reading Only     : A data file is a file that you can open and read its contents visually - for example, C source files, .dat files, HTML etc - anything that look

Offset litho duplicating of information, Offset Litho Duplicating Equi...

Offset Litho Duplicating Equipment Required Duplicator Plate-making equipment (not always, essential), e.g. printing box and processing unit Plates Paper Ink

In order to concatenate strings only for output purposes, In order to conca...

In order to concatenate strings only for output purposes which command can be used in conjunction with the 'Write' statement. NO-GAP command.

Determine the maximum amplitude of delta modulator, (a) Consider a sinusoid...

(a) Consider a sinusoidal signal m(t) = A cos(2πfmt) applied to a delta modulator with step size Δ. Determine the range of the step size so that slope overload will be avoided. Ass

Data types done between abap/4 & external level, How is conversion of data ...

How is conversion of data types done between ABAP/4 & external level? Conversion among the external layer and the ABAP/4 layer is completed in the SAP dialog manager DYNP.

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