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OBIEE 11g Training Online Class OLAP Vs OLTP differences - Reporting Tool


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OBIEE 11g Training Online Class OLAP Vs OLTP differences - Reporting Tool

  1. 1. OBIEE 11g Training Course OLAP Vs OLTP
  2. 2. NEWYORKSYS – IT Solutions Newyorksys are destined to offer quality IT training and services with delivery comprehensive complete orientation. IT consulting business service Newyorksys have implemented many pioneering service delivery methodologies, and IT training services. Newyorksys have vast experience in rendering customized online IT training support on various IT courses and technologies. (718)-313-0499
  3. 3. OLTP (ON-LINE TRANSACTION PROCESSING) • OLTP is characterized by a large number of short on- line transactions (INSERT, UPDATE, DELETE). • The main emphasis for OLTP systems is put on very fast query processing, maintaining data integrity in multi-access environments and an effectiveness measured by number of transactions per second. • In OLTP database there is detailed and current data, and schema used to store transactional databases is the entity model (usually 3NF). (718)-313-0499
  4. 4. OLAP (ON-LINE ANALYTICAL PROCESSING) • OLAP is characterized by relatively low volume of transactions. • Queries are often very complex and involve aggregations. • For OLAP systems a response time is an effectiveness measure. • OLAP applications are widely used by Data Mining techniques. • In OLAP database there is aggregated, historical data, stored in multi-dimensional schemas (usually star schema). (718)-313-0499
  5. 5. OLTP Vs OLAP • OLTP: On-line Transaction Processing • OLAP: Online Analytical Processing • Many short (queries+updates). transactions Eg: Add a book to shopping Cart • Long transactions, queries. complex Eg: Identifying Top selling books • Queries touch small amounts of data (one record or a few records) • Queries touch large amounts of data • Updates are frequent. • Updates are infrequent. • Concurrency is performance Concern. biggest • Individual queries can require lots of resources. (718)-313-0499
  6. 6. Why OLAP and OLTP don’t mix Different performance requirements • Transaction processing (OLTP) − Fast response time important (< 1 sec) − Data must be up-to-date, consistent at all times • Data analysis (OLAP) − Queries can consume lots of resources − Can saturate CPUs and disk bandwidth − Operating on static “snapshot” of data usually OK • OLAP can “crowd out” OLTP transactions − Transactions are slow  unhappy users (718)-313-0499
  7. 7. Why OLAP and OLTP don’t mix Different performance requirements • Transaction processing (OLTP) − Normalized schema for consistency. − Complex data models, many tables − Limited number of standardized queries and updates • Data analysis (OLAP): − Simplicity of data model is important • Allow semi-technical users to formulate ad hoc queries − De-normalized schemas are common • Fewer Joins  improved query performance • Fewer tables  schema is easier to understand (718)-313-0499
  8. 8. Why OLAP and OLTP don’t mix Analysis requires data from many sources: • An OLTP system targets one specific process − For eg: ordering from an online store • OLAP integrates data from different processes − Combine sales, inventory, and purchasing data − Analyze experiments conducted by different labs • OLAP often makes use of historical data − Identify long-term patterns − Notice changes in behavior over time • Terminology, Schemas vary across data sources • Integrating data from disparate sources is a major challenge (718)-313-0499
  9. 9. NEWYORKSYS – IT Solutions • Newyorksys provides Industry best IT Online Trainings in various Premium Technologies and all our Trainers are based in the USA, Canada. • We successfully work with 150+ Clientele and Prime Vendors to find you placements throughout U.S.A. • If you need Professional OBIEE 11g Instructor led Training - We provide Fast Track and Regular Training Programs with Free Placement Assistance. • (718)-313-0499
  10. 10. SAP Modules we offered: • SAP Basis • SAP BI • SAP ABAP HR • SAP ABAP • SAP BPC • SAP ABAP Workflow • SAP Security • SAP EP Admin • SAP Business Objects • SAP Net Weaver • SAP SCM • SAP APO • SAP XI/PI • SAP BW • SAP PLM • SAP FICO • SAP SD • SAP SEM • SAP MM • SAP CRM • SAP PS • SAP PP • SAP HR/HCM • SAP WM • SAP MDM • SAP SRM • SAP IS Retail (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. Reach us 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