database - Why is the business activity/engagement of OLAP so small in comparison to OLTP one? -


http://sql.wikis.com/wc.dll?sql~datawarehouse tells:

  • "sid adelman of sid adelman & associates in recent presentation observed meta group estimates the cost of single data warehouse implementation project runs around $3 million, , single, initial implementation, near scope of providing integrated views entire enterprise"

i afraid $3 million not tell majority of ppl.

how relate cost of corresponding (by size , level of data processing of) oltp database implementation?
higher/lower? how many times?

note olap solutions being implemented after costs of dbms made oltp solutions...

why costs elevated?

update:
let me reformulate question: why olap solutions rather rare in comparison oltp ones?

does laboriousness , costs of olap seem prohibitive?

nobody seems doubt in need , necessity spend money on oltp.
though, logical point of view, not clear me why not vice versa?
there lot of legacy data sources accumulated outside of dbms...

update2:
reformulating question again...
1 can judge professional , business activity in areas activity (number , frequency) of forum posts questions, vacancies, etc.
oltp related questions has 2 orders more frequency(number) of questions compared olap ones in site.
why it?

why it? oltp related questions has 2 orders more frequency(number) of questions compared olap ones in site.

could experienced database developers olap while oltp done application programmers little or no database knowledge? there less need ask questions , questions have tend complex forum.

could there fewer olap databases because need 1 or more oltp databases pull data , olap implementations consolidate data many oltp databases? small databases , databases on subjects don't need data warehousing solutions @ all? there no need develop data warehouse if reporting needs perform adequately aginst oltp database, amount of data gets large , reporting gets complex these types of projects initiated.

i can assure our enterprise oltp databases cost considerably more 3 million develop. comparison our olap databases cheaper. have spent less 5% of development time on olap on oltp. maybe less 1%.


Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc...
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use...
Read more