PPT-Query Optimization Techniques and Performance Issues in XML

CSE 8330 Instructor DrMargaret H Dunham Presenter Akshaya Aradhya Introduction Query optimization in XML databases Query optimization in Parallel databases Comparison Conclusion and Future work. In addition to extensibility dynamic pro gramming and memorization based on and extended from the EXODUS and Volcano prototypes this new optimizer provides i manipulation of operator arguments using rules or functions ii operators that are both logi ®. BW Accelerator. Dr. Bjarne Berg. Comerit Inc. .. 2. In This Session .... Show what SAP NetWeaver. ®. BW Accelerator is and how it works. Look what SAP BW Accelerator can and cannot do to optimize query and dashboard performance. ®. . BW . Accelerator. Including BWA 7.2 new features. Dr. Bjarne Berg. Comerit Inc. .. 2. In This Session .... Show what SAP NetWeaver. ®. BW Accelerator is and how it works. Look what SAP BW Accelerator can and cannot do to optimize query and dashboard performance. Dr. Bjarne Berg . 3. What We’ll Cover …. . Introduction. Performance Issues & Tips. MultiProviders and Partitioning. Aggregates. Query Design & Caching. Hardware & Servers. Designing for Performance. Michael . Armbrust. , Kristal Curtis, Tim . Kraska. Armando Fox, Michael J. Franklin, David A. Patterson. AMP Lab, EECS, UC Berkeley. Introduction. Large-scale websites are increasingly moving from relational databases to distributed key-value stores.. Query Optimization Process. (simplified a bit). Parse the SQL query into a logical tree:. identify distinct blocks (corresponding to nested sub-queries or views). . Query rewrite phase:. apply . algebraic transformations. Dr. Bjarne Berg . 3. What We’ll Cover …. . Introduction. Performance Issues & Tips. MultiProviders and Partitioning. Aggregates. Query Design & Caching. Hardware & Servers. Designing for Performance. Steve Thompson, ConfigMgr MVP. Configuration Manager . Advisor, Dell Services. UD-B407. How to solve common questions with queries. Understand the query process. Identify . performance . issues. Statistics . of Full . GC. . in Memory-hungry Environments. Yang Yu. , . Tianyang. Lei, . Weihua. Zhang, . Haibo. Chen, . Binyu. . Zang. Institute of Parallel and Distributed Systems (IPADS). Shanghai Jiao Tong University, China. ®. BW Accelerator. Dr. Bjarne Berg. Comerit Inc. .. 2. In This Session .... Show what SAP NetWeaver. ®. BW Accelerator is and how it works. Look what SAP BW Accelerator can and cannot do to optimize query and dashboard performance. Query optimization. :. The process of choosing a suitable execution strategy for processing a query.. Two internal representations of a query:. Query Tree. Query Graph. Introduction to Query Processing (2). Developers. Anil Desai (. Anil@AnilDesai.net. | . http://AnilDesai.net. ). Austin .NET User’s Group, 04/14/2014. Presentation Overview. Database Performance Goals and Challenges. Monitoring and Optimizing Performance. Webi Techniques from the Jedi Academy Alan Mayer Solid Ground Technologies SESSION CODE: 0904  Introduction  Query Techniques  Report Techniques  Performance Considerations  Conclusion The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand