Interview Questions Answers.ORG
Interviewer And Interviewee Guide
Interviews
Quizzes
Home
Quizzes
Interviews Data Warehouse Job Interviews:Ab InitioActuateAnalysis ServicesBO DesignerBusiness ObjectsCognos Data WarehouseColdFusionCrystal Enterprise SuiteData IntegrationData ScientistData StageData Warehouse AnalystData Warehouse BIData Warehouse Data MartData Warehouse DeveloperData Warehouse ManagerData Warehouse SupervisorData Warehouses MicroStrategyData WarehousingData Warehousing BasicsDatabase PartitioningEnterprise Data WarehouseETL (Extract, transform, load)General DatawarehousingHyperionImpromptuInformatica Data WarehousingLead Data ScientistMicro StrategyOperational Data StoreReportnetSAS (Statistical Analysis System)Warehouse AssistantWarehouse ConceptsWarehouse DataStageWarehouse Operation ManagerWarehouse Worker
Copyright © 2018. All Rights Reserved
Data Warehousing Basics Interview Question:
What is the main difference between schema in RDBMS and schemas in DataWarehouse?
Submitted by: AdministratorRDBMS Schema
* Used for OLTP systems
* Traditional and old schema
* Normalized
* Difficult to understand and navigate
* Cannot solve extract and complex problems
* Poorly modelled
DWH Schema
* Used for OLAP systems
* New generation schema
* De Normalized
* Easy to understand and navigate
* Extract and complex problems can be easily solved
* Very good model
Submitted by: Administrator
* Used for OLTP systems
* Traditional and old schema
* Normalized
* Difficult to understand and navigate
* Cannot solve extract and complex problems
* Poorly modelled
DWH Schema
* Used for OLAP systems
* New generation schema
* De Normalized
* Easy to understand and navigate
* Extract and complex problems can be easily solved
* Very good model
Submitted by: Administrator
Copyright 2007-2024 by Interview Questions Answers .ORG All Rights Reserved.
https://InterviewQuestionsAnswers.ORG.
https://InterviewQuestionsAnswers.ORG.