Book
Principles of Data Integration
| Identifier | --anhaidoan-1139 |
|---|---|
| Penulis / Pengarang | AnHaiDoan |
| Kata Kunci | Data Integration |
| Tanggal Publikasi | 09 Nov 2020 |
| Bahasa | Bahasa Indonesia |
| Abstrak / Deskripsi | Finally,therepresentationofthedatacanbesigniï¬Âcantlydifferentaswell.Forexample, inFullServe’sEmployeedatabase,thecompanyrecordstheï¬Ârst,middle,andlastnameof everyemployeeinaseparateï¬Âeld.IntheTrainingdatabase,itonlyrecordsthefullnameof theemployeeinasingleï¬Âeld,andasaresult,namesoftenoccurinvariousformats,suchas (First,Last)or(Last,FirstInitial).Consequently,itmaybehardtomatchrecordsfromthese twodatabases.ThesameproblemoccursbetweentheSalesandServicesdatabases.While the Sales database only records a ï¬Âeld for the name and a ï¬Âeld for the address, the Services database records much ï¬Âner-grained information about each subscriber. Of course, the units of measure will differ as well: FullServe uses American dollars for prices, while EuroCardusesEuros.Sincetheexchangeratebetweenthecurrenciesconstantlychanges, thecorrespondencebetweenthevaluescannotbesetapriori. |
File Lampiran / Download (1)
| No | Nama Berkas | Format | Ukuran | Aksi |
|---|---|---|---|---|
| 1 | 2012 Principles of Data Integration.pdf | application/pdf | 7,6 MB | ⬇️ Buka / Download |
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