Data Warehouse Definition and An Introduction - Overview on What it is?


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Data Warehouse: ETL and Reporting Tools
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Data Warehouse Definition and An Introduction - Overview on What it is?

  2. 2. (718)-313-0499
  3. 3. WHAT IS DATA WAREHOUSING? • A data warehouse is a copy of transaction data specifically structured for querying and reporting. An expanded definition for data warehousing includes business intelligence tools, tools to extract, transform and load data into the repository, and tools to manage and retrieve meta data. (718)-313-0499
  4. 4. NEWYORKSYS – IT Solutions NewyorkSys are destined to offer quality IT training and comprehensive IT consulting services with complete business service delivery orientation. NewyorkSys have implemented many pioneering service delivery methodologies, and IT training services. NewyorkSys provides Data Warehouse Technologies Online Training from US. Reach Us for more details. (718)-313-0499
  5. 5. WHAT IS DATA WAREHOUSING? • NOTHING TO DO WITH WHETHER SOMETHING IS A DATA WAREHOUSE. • “This definition of the data warehouse focuses on data storage.” A data warehouse can be normalized or denormalized. It can be a relational database, multidimensional database, flat file, hierarchical database, object database, etc. “Data warehouse data often gets changed.” And data warehouses often focus on a specific activity or entity. (718)-313-0499
  6. 6. WHY DO WE NEED DATA WAREHOUSES? • “Consolidation of information resources” Improved query performance “Separate research and decision support functions from the operational systems Foundation for data mining, data visualization, advanced reporting and OLAP tools. • “The data stored in the warehouse is uploaded from the operational systems.” The data may pass through an operational data store for additional operations before it is used in the DW for reporting. “Operational DBMS is used to deal with the everyday running of one aspect of an enterprise.” OLTP (On-Line Transaction Processor) or Operational DBMS are usually designed independently of each other and it is difficult for them to share information. (718)-313-0499
  7. 7. HOW DO DATA WAREHOUSES DIFFER FROMOPERATIONAL DBMS? • Goals Structure Size Performance optimization Technologies used (718)-313-0499
  8. 8. HOW DO DATA WAREHOUSES DIFFER FROM OPERATIONAL SYSTEMS? • Data warehouse Operational DBMS Subject oriented Transaction oriented Large (hundreds of GB up to several TB)Small (MB up to several GB)Historic data Current data De-normalized table structure(few tables, many columns pertable)Normalized table structure (many tables, few columns per table)Batch updates Continuous updates Usually very complex queries Simple to complex queries (718)-313-0499
  9. 9. (718)-313-0499
  10. 10. SAP Modules we offered: • • • • • • • • • SAP Basis SAP ABAP SAP Security SAP Net Weaver SAP XI/PI SAP FICO SAP MM SAP PP SAP WM • • • • • • • • • SAP SRM SAP BI SAP BPC SAP EP Admin SAP SCM SAP BW SAP SD SAP CRM SAP HR/HCM • • • • • • • • • SAP MDM SAP IS Retail SAP ABAP HR SAP ABAP Workflow SAP Business Objects SAP APO SAP PLM SAP SEM SAP PS (718)-313-0499
  11. 11. Other Modules we offered: Data Warehouse: • INFORMATICA 9.1 • COGNOS 10.0 • OBIEE • MSBI • MicroStrategy 9.3 • DataStage 8.0 • Hyperion Essbase 11.x • BODS 4.0 Network/System Admin: • CCNA • CCNP • MCSE • MCITP • LINUX Microsoft: • SHAREPOINT • ASP .NET • SQL SERVER DBA Other Courses: • SIX SIGMA • SAS 9.2 • QTP • ANDROID • CLOUD COMPUTING • BUSINESS ANALYSIS • J2EE • HADOOP 4.0 (718)-313-0499
  12. 12. Online Training is offered by Neyworksys - IT SOlutions in Regular and Fast Track mode programs with Placement Assistance. Refer your friends when they need in professional growth in their Industry. Interact with Newyorksys trainer and discuss your requirements. Email : Call: (718)-313-0499, (718)-313-0593 (718)-313-0499