State of Enterprise Database Technology
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Data Warehouse Fundamentals for Storage Professionals – What You Need to Know EMC Proven Professional Knowledge Sharing 2011
Data Warehouse Fundamentals for Storage Professionals – What You Need To Know EMC Proven Professional Knowledge Sharing 2011 Bruce Yellin Advisory Technology Consultant EMC Corporation [email protected] Table of Contents Introduction ................................................................................................................................ 3 Data Warehouse Background .................................................................................................... 4 What Is a Data Warehouse? ................................................................................................... 4 Data Mart Defined .................................................................................................................. 8 Schemas and Data Models ..................................................................................................... 9 Data Warehouse Design – Top Down or Bottom Up? ............................................................10 Extract, Transformation and Loading (ETL) ...........................................................................11 Why You Build a Data Warehouse: Business Intelligence .....................................................13 Technology to the Rescue?.......................................................................................................19 RASP - Reliability, Availability, Scalability and Performance ..................................................20 Data Warehouse Backups .....................................................................................................26 -
Voodoo - a Vector Algebra for Portable Database Performance on Modern Hardware
Voodoo - A Vector Algebra for Portable Database Performance on Modern Hardware Holger Pirk Oscar Moll Matei Zaharia Sam Madden MIT CSAIL MIT CSAIL MIT CSAIL MIT CSAIL [email protected] [email protected] [email protected] [email protected] ABSTRACT Single Thread Branch Multithread Branch GPU Branch In-memory databases require careful tuning and many engi- Single Thread No Branch Multithread No Branch GPU No Branch neering tricks to achieve good performance. Such database performance engineering is hard: a plethora of data and 10 hardware-dependent optimization techniques form a design space that is difficult to navigate for a skilled engineer { even more so for a query compiler. To facilitate performance- 1 oriented design exploration and query plan compilation, we present Voodoo, a declarative intermediate algebra that ab- stracts the detailed architectural properties of the hard- ware, such as multi- or many-core architectures, caches and Absolute time in s 0.1 SIMD registers, without losing the ability to generate highly tuned code. Because it consists of a collection of declarative, vector-oriented operations, Voodoo is easier to reason about 1 5 10 50 100 and tune than low-level C and related hardware-focused ex- Selectivity tensions (Intrinsics, OpenCL, CUDA, etc.). This enables Figure 1: Performance of branch-free selections based on our Voodoo compiler to produce (OpenCL) code that rivals cursor arithmetics [28] (a.k.a. predication) over a branching and even outperforms the fastest state-of-the-art in memory implementation (using if statements) databases for both GPUs and CPUs. In addition, Voodoo makes it possible to express techniques as diverse as cache- conscious processing, predication and vectorization (again PeR [18], Legobase [14] and TupleWare [9], have arisen. -
A Survey on Parallel Database Systems from a Storage Perspective: Rows Versus Columns
A Survey on Parallel Database Systems from a Storage Perspective: Rows versus Columns Carlos Ordonez1 ? and Ladjel Bellatreche2 1 University of Houston, USA 2 LIAS/ISAE-ENSMA, France Abstract. Big data requirements have revolutionized database technol- ogy, bringing many innovative and revamped DBMSs to process transac- tional (OLTP) or demanding query workloads (cubes, exploration, pre- processing). Parallel and main memory processing have become impor- tant features to exploit new hardware and cope with data volume. With such landscape in mind, we present a survey comparing modern row and columnar DBMSs, contrasting their ability to write data (storage mecha- nisms, transaction processing, batch loading, enforcing ACID) and their ability to read data (query processing, physical operators, sequential vs parallel). We provide a unifying view of alternative storage mecha- nisms, database algorithms and query optimizations used across diverse DBMSs. We contrast the architecture and processing of a parallel DBMS with an HPC system. We cover the full spectrum of subsystems going from storage to query processing. We consider parallel processing and the impact of much larger RAM, which brings back main-memory databases. We then discuss important parallel aspects including speedup, sequential bottlenecks, data redistribution, high speed networks, main memory pro- cessing with larger RAM and fault-tolerance at query processing time. We outline an agenda for future research. 1 Introduction Parallel processing is central in big data due to large data volume and the need to process data faster. Parallel DBMSs [15, 13] and the Hadoop eco-system [30] are currently two competing technologies to analyze big data, both based on au- tomatic data-based parallelism on a shared-nothing architecture. -
Operational Database Offload
Operational Database Offload Partner Brief Facing increased data growth and cost pressures, scale‐out technology has become very popular as more businesses become frustrated with their costly “Our partnership with Hortonworks is able to scale‐up RDBMSs. With Hadoop emerging as the de facto scale‐out file system, a deliver to our clients 5‐10x faster performance Hadoop RDBMS is a natural choice to replace traditional relational databases and over 75% reduction in TCO over traditional scale‐up databases. With Splice like Oracle and IBM DB2, which struggle with cost or scaling issues. Machine’s SQL‐based transactional processing Designed to meet the needs of real‐time, data‐driven businesses, Splice engine, our clients are able to migrate their legacy database applications without Machine is the only Hadoop RDBMS. Splice Machine offers an ANSI‐SQL application rewrites” database with support for ACID transactions on the distributed computing Monte Zweben infrastructure of Hadoop. Like Oracle and MySQL, it is an operational database Chief Executive Office that can handle operational (OLTP) or analytical (OLAP) workloads, while scaling Splice Machine out cost‐effectively from terabytes to petabytes on inexpensive commodity servers. Splice Machine, a technology partner with Hortonworks, chose HBase and Hadoop as its scale‐out architecture because of their proven auto‐sharding, replication, and failover technology. This partnership now allows businesses the best of all worlds: a standard SQL database, the proven scale‐out of Hadoop, and the ability to leverage current staff, operations, and applications without specialized hardware or significant application modifications. What Business Challenges are Solved? Leverage Existing SQL Tools Cost Effective Scaling Real‐Time Updates Leveraging the proven SQL processing of Splice Machine leverages the proven Splice Machine provides full ACID Apache Derby, Splice Machine is a true ANSI auto‐sharding of HBase to scale with transactions across rows and tables by using SQL database on Hadoop. -
Product 360: Retail and Consumer Industries
PRODUCT 360: RETAIL AND CONSUMER INDUSTRIES MARKLOGIC WHITE PAPER • NOVEMBER 2015 PRODUCT INFORMATION IS COMPLEX A major challenge for Retail and Consumer companies today is product proliferation and product complexity. An electronics retailer for example may have over 70,000 products in its catalog, while it is not uncommon for an industrial distributor to have over a million products and represent over 1,000 suppliers. Products HD typically have short shelf lives. In electronics for example it’s not uncommon for a new model to be released every year. And, a “Product” is not just a physical SKU (stock keeping unit) but a complex combination of structured HD and unstructured data that helps consumers search for, evaluate, compare, and choose their desired purchase. Product information includes a variety of data elements Product information includes a wide variety of data elements which are generated and stored in multiple locations, for example: WHY IS “PRODUCT 360” • Product descriptive information (e.g. size, color, IMPORTANT? material, nutritional information, usage, and other Creating, maintaining, and managing a 360 degree view elements that define it) of products is at the core of competitive differentiation • Digital images and videos – and in fact even survival – for retail and consumer • Customer ratings and reviews companies. • Dynamic pricing and promotions • Availability in-stock Key benefits of a Product 360 include: • Consumer loyalty information (who’s most likely to buy it) REVENUE GROWTH • Related products and accessories Today just 3% of on-line e-commerce transactions actually result in a sale. E-Commerce is the fastest These data elements often sit in different databases and growing channel for retailers, and sales via e-commerce legacy systems, making accessing them a challenge. -
VECTORWISE Simply FAST
VECTORWISE Simply FAST A technical whitepaper TABLE OF CONTENTS: Introduction .................................................................................................................... 1 Uniquely fast – Exploiting the CPU ................................................................................ 2 Exploiting Single Instruction, Multiple Data (SIMD) .................................................. 2 Utilizing CPU cache as execution memory ............................................................... 3 Other CPU performance features ............................................................................. 3 Leveraging industry best practices ................................................................................ 4 Optimizing large data scans ...................................................................................... 4 Column-based storage .............................................................................................. 4 VectorWise’s hybrid column store ........................................................................ 5 Positional Delta Trees (PDTs) .............................................................................. 5 Data compression ..................................................................................................... 6 VectorWise’s innovative use of data compression ............................................... 7 Storage indexes ........................................................................................................ 7 Parallel -
Operational Database Overview Date Published: 2020-02-29 Date Modified: 2021-02-04
Cloudera Runtime 7.2.7 Operational Database Overview Date published: 2020-02-29 Date modified: 2021-02-04 https://docs.cloudera.com/ Legal Notice © Cloudera Inc. 2021. All rights reserved. The documentation is and contains Cloudera proprietary information protected by copyright and other intellectual property rights. No license under copyright or any other intellectual property right is granted herein. Copyright information for Cloudera software may be found within the documentation accompanying each component in a particular release. Cloudera software includes software from various open source or other third party projects, and may be released under the Apache Software License 2.0 (“ASLv2”), the Affero General Public License version 3 (AGPLv3), or other license terms. Other software included may be released under the terms of alternative open source licenses. Please review the license and notice files accompanying the software for additional licensing information. Please visit the Cloudera software product page for more information on Cloudera software. For more information on Cloudera support services, please visit either the Support or Sales page. Feel free to contact us directly to discuss your specific needs. Cloudera reserves the right to change any products at any time, and without notice. Cloudera assumes no responsibility nor liability arising from the use of products, except as expressly agreed to in writing by Cloudera. Cloudera, Cloudera Altus, HUE, Impala, Cloudera Impala, and other Cloudera marks are registered or unregistered trademarks in the United States and other countries. All other trademarks are the property of their respective owners. Disclaimer: EXCEPT AS EXPRESSLY PROVIDED IN A WRITTEN AGREEMENT WITH CLOUDERA, CLOUDERA DOES NOT MAKE NOR GIVE ANY REPRESENTATION, WARRANTY, NOR COVENANT OF ANY KIND, WHETHER EXPRESS OR IMPLIED, IN CONNECTION WITH CLOUDERA TECHNOLOGY OR RELATED SUPPORT PROVIDED IN CONNECTION THEREWITH. -
P6 Reporting Database Planning and Sizing
P6 Reporting Database Ver 3.0 Planning and Sizing An Oracle White Paper December 2011 Disclaimer The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. Contents Introduction ...................................................................................................................................... 5 Critical Performance Factors ............................................................................................................ 5 Four Key Areas of the ETL ................................................................................................................. 6 Pulling Data between Servers ..................................................................................................... 6 Merging Updates into Target Database ...................................................................................... 6 PL/SQL-based Transformations .................................................................................................. 7 Planning Process .............................................................................................................................. 7 Why Planning is Key ......................................................................................................................... -
What Is Database? Types and Examples
What is database? Types and Examples Visit our site for more information: www.examplanning.com Facebook Page: https://www.facebook.com/examplanning10/ Twitter: https://twitter.com/examplanning10 TABLE OF CONTENTS Sr. Description 1 What is database? 2 Different definitions of database 3 Growth of Database 4 Elements of Database 5 Components of database 6 Database System Environment 7 Types of Databas 8 Characteristics of database 9 Advantages of Database 10 Disadvantages of Database What is Database? A database is a collection of information or data which are organized in such a way that it can be easily accessed, managed and retrieved. Database is abbreviated ad DB. Different definitions of database. “a usually large collection of data organized especially for rapid search and retrieval (as by a computer) an online database” (merriam-webster) “a comprehensive collection of related data organized for convenient access, generally in a computer.” (dictionary) A database is an organized collection of data. (Wikipedia) What is data? It is used as both singular and plural form. It can be a quantity, symbol or character on which operations are performed. Data is information which are converted into digital form. Growth of Database Database was evolved in 1960's started with the hierarchical database. Relational database was invented by EF Codd in 1970s while object oriented database was invented in 1980s. In 1990s object oriented database rose with the growth of object oriented programming languages. Nowadays, databases with SQL and NoSQL are popular. Elements of Database Database elements are fields, rows, columns, tables. All these are building blocks of database. -
Aware, Workstation-Based Distributed Database System
THE ARCHITECTURE OF AN AUTONOMIC, RESOURCE- AWARE, WORKSTATION-BASED DISTRIBUTED DATABASE SYSTEM Angus Macdonald PhD Thesis February 2012 Abstract Distributed software systems that are designed to run over workstation machines within organisations are termed workstation-based. Workstation-based systems are characterised by dynamically changing sets of machines that are used primarily for other, user-centric tasks. They must be able to adapt to and utilize spare capacity when and where it is available, and ensure that the non-availability of an individual machine does not affect the availability of the system. This thesis focuses on the requirements and design of a workstation-based database system, which is motivated by an analysis of existing database architectures that are typically run over static, specially provisioned sets of machines. A typical clustered database system — one that is run over a number of specially provisioned machines — executes queries interactively, returning a synchronous response to applications, with its data made durable and resilient to the failure of machines. There are no existing workstation-based databases. Furthermore, other workstation-based systems do not attempt to achieve the requirements of interactivity and durability, because they are typically used to execute asynchronous batch processing jobs that tolerate data loss — results can be re-computed. These systems use external servers to store the final results of computations rather than workstation machines. This thesis describes the design and implementation of a workstation-based database system and investigates its viability by evaluating its performance against existing clustered database systems and testing its availability during machine failures. ACKNOWLEDGEMENTS I’d like to thank my supervisors, Professor Alan Dearle and Dr Graham Kirby, for the opportunities, the support, and the education that they have given me. -
Providing High Availability for SAP Resources with Oracle Clusterware 11 Release 2
Providing High Availability for SAP Resources with Oracle Clusterware 11 Release 2 An Oracle White Paper September 2011 Document Version 6.0 Providing High Availability for SAP Resources Overview of High Availability for SAP Resources.................................................... 3 New Functionality...................................................................................................... 3 SAP Support for High Availability ............................................................................ 4 Installation and Management ..................................................................................... 7 Overview Of Installation and Configuration.............................................................. 8 Functionality............................................................................................................. 13 Conclusion................................................................................................................ 16 Worked Example...................................................................................................... 17 Appendix 1 – Sample profile scripts........................................................................ 22 Appendix 2 – Troubleshooting and Log Files.......................................................... 24 Appendix 2 - SAPCTL Bill of Materials.................................................................. 25 Appendix 3 – CRS resources and types ................................................................... 25 Appendix 4 – -
Using Oracle Goldengate 12C for Oracle Database
An Oracle White Paper Updated September 2013 Using Oracle GoldenGate 12c for Oracle Database Using Oracle GoldenGate 12c for Oracle Database Executive Overview ........................................................................... 2 Introduction ....................................................................................... 3 Architecture Overview ....................................................................... 4 Oracle GoldenGate Capture .......................................................... 5 Oracle GoldenGate Trail Files ....................................................... 6 Oracle GoldenGate Delivery .......................................................... 7 Oracle GoldenGate Manager ......................................................... 9 Associated Products ...................................................................... 9 One Platform, Many Solutions ......................................................... 11 Zero Downtime Migrations and Upgrades .................................... 12 Query Offloading ......................................................................... 12 Disaster Recovery and Data Protection ....................................... 13 Active-Active Database Replication ............................................. 13 Operational Reporting and Real-Time Data Warehousing ........... 13 Data Distribution and Synchronization for OLTP Systems ........... 14 Oracle GoldenGate for Oracle Database ......................................... 15 Capture (Extract) ........................................................................