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37 results for "relational algebra"

Question	Category	Date
What is relational algebra? by Daniel J. Power Editor, DSSResources.COM Relational algebra is a formal system, i.e., a well-defined system of abstract thought, for manipulat...	DSS Foundations	Aug 07, 2014
What is a columnar database? by Daniel J. Power Editor, DSSResources.COM A columnar database stores data tables as sections of columns of data rather than as rows of data. Ch...	DSS Foundations	May 02, 2013
What is the theory of relational databases? by Dan Power Editor, DSSResources.com Relational databases organize data elements in clusters that are meaningful to users and useful for perform...	DSS Foundations	Apr 11, 2010
What are post-relational databases? by Daniel Power Editor, DSSResources.com Post-relational or non-relational databases implement a conceptual schema using a non-relational data mo...	DSS Foundations	Aug 20, 2016
What is the scope of database administration? by Daniel J. Power Editor, DSSResources.COM Databases are central to transaction processing and decision support. Database administration is a com...	DSS Foundations	Nov 12, 2014
What is the difference between a DBMS and an RDBMS? by Daniel J. Power Editor, DSSResources.COM DBMS is an umbrella term for different types of database management system (DBMS) technologies. A rela...	DSS Foundations	Jan 02, 2017
What is a flat data file? by Daniel J. Power Editor, DSSResources.com Data is stored in a number of formats. In the early years of computing, data was stored and retrieve...	DSS Foundations	Jul 10, 2017
Is Amazon Web Services a 'good fit' for decision support and OLTP? by Daniel J. Power Editor, DSSResources.COM Amazon Web Services (AWS) hosts many popular Web applications including: Instagram, Vine, IFTTT, Netf...	DSS Foundations	Aug 25, 2013
What is a document database? by Dan Power Editor, DSSResources.com Increasingly unstructured or semi-structured documents are the drivers of new, novel decision support syst...	DSS Foundations	Nov 26, 2011
What is an enterprise information architecture? by Daniel J. Power Editor, DSSResources.COM According to The Open Group Architecture Framework (2006), an enterprise information architecture is "...	DSS Foundations	Apr 01, 2015
What Wikipedia resources are useful for a database management course? by Daniel J. Power Editor, DSSResources.COM Managing data is a fundamental need in organizations. More complex data, parallel processing and inex...	DSS Foundations	Aug 13, 2013
What are examples of routine decision support queries? by Dan Power Editor, DSSResources.com In the mid-1980s, the introduction of powerful relational database management systems (RDBMS) like Oracle ...	DSS Foundations	Jul 22, 2009
What is a database? by Dan Power Editor, DSSResources.com Database is a fundamental concept for information technology professionals. While some lay people have an ...	DSS Foundations	Jul 09, 2017
What is Hadoop? by Dan Power Editor, DSSResources.com Data-driven DSS may need to access and process very large data sets to support decision-making. One way to...	DSS Foundations	May 26, 2013
Is a Data Warehouse a DSS? What is a star schema? No, a data warehouse is not a Decision Support System. A data warehouse is however usually the "driver" and dominant component for a Data-dr...	Data-driven DSS	Aug 06, 2005
How is data management linked to analytics and decision support? by Daniel Power Editor, DSSResources.com Data management or data resource management refers to activities and tasks associated with capturing, or...	DSS Foundations	Aug 30, 2016
How do data storage strategies differ among uses? by Daniel J. Power Editor, DSSResources.COM Everything that happens is being digitized. Customers are data, processes are data, supply chains are...	DSS Foundations	Aug 13, 2018
What do I need to know about Data Warehousing/OLAP? by Daniel J. Power Editor, DSSResources.COM A data warehouse is a central, integrated repository for historical, enterprise data from multiple bus...	Data-driven DSS	Oct 12, 2014
Is parallel database technology needed for data-driven DSS? by Dan Power Editor, DSSResources.COM Few managers have heard of parallel computer processing and parallel databases. Nonetheless the desire of ...	Data-driven DSS	Mar 02, 2007
What technologies are used for managing big data? by Daniel J. Power Editor, DSSResources.COM Data-driven DSS and predictive analytics frequently need to access and process very large data sets ...	DSS Foundations	Nov 10, 2016
What are the best analytics and 'big data' videos online? by Daniel J. Power Editor, DSSResources.COM There are many video on the Web and especially on YouTube relevant to "big data" and analytics. The ...	DSS Foundations	Mar 08, 2014
What are examples of database project failures? by Daniel J. Power Editor, DSSResources.COM Database centered projects for decision support and transaction processing do fail. How often? Acco...	DSS Foundations	Aug 18, 2013
What is a data modeler? by Daniel J. Power Editor, DSSResources.COM In the era of rapidly expanding, diverse data, someone needs to identify patterns and regularities in...	DSS Foundations	Sep 21, 2015
What is the impact of information management on the organization? by Daniel J. Power Editor, DSSResources.COM Thirty years ago, at the start of my career, I addressed this question (cf., Power, 1983). My MIS Qua...	DSS Foundations	Nov 24, 2013
What is the Analytical Hierarchy Process (AHP)? Better known as "AHP", pronouncing each letter ("A" -- "H" -- "P"), this decision structuring tool is well-kno...	Model-driven DSS	Aug 07, 2005
What are examples of data science jobs? by Daniel J. Power Editor, DSSResources.COM Data scientist is the "new", "hot", "sexy" and high paying job associated with decision support and...	DSS Foundations	Feb 22, 2014
What are benefits of Interorganizational DSS? by Dan Power Editor, DSSResources.com In general, an organization can benefit by providing DSS to its customers, suppliers and other significant...	DSS Applications	Mar 19, 2008
How does DSS data differ from operational data? by Daniel J Power Editor, DSSResources.com Decision support data used for analytics and data-driven DSS is related to past actions and intentions...	DSS Foundations	Aug 07, 2016
What is ACID and BASE in database theory? by Daniel J. Power Editor, DSSResources.COM Data-driven and document-driven decision support systems derive functionality from data stores and da...	DSS Foundations	Oct 12, 2013
Are Executive Information Systems (EIS) needed? by Dan Power Editor, DSSResources.com At least 30 years ago, Chief Executive Officers (CEOs) began going online for information (cf., Rockhart, ...	Data-driven DSS	Sep 17, 2008
What is the best approach for organizing data? by Daniel J. Power Editor, DSSResources.COM In an information technology context, organizing means to arrange data in a coherent form and to syst...	DSS Foundations	Jul 25, 2013
What criteria should be used to evaluate BI/DW vendor solutions? by Dan Power Editor, DSSResources.com Selecting an enterprise business intelligence (BI)/data warehouse (DW) vendor solution is an important deci...	DSS Foundations	Dec 26, 2013
What is the history of computerized decision support? by Dan Power Editor, DSSResources.com Supposedly, if we study history we are less likely to make the same mistakes again. Decision support was on...	DSS Foundations	Jun 10, 2009
What are physical database design tradeoffs for decision support data? by Dan Power Editor, DSSResources.com Implementing a decision support database involves tradeoffs. A designer needs to transform an ideal, logi...	DSS Foundations	Oct 01, 2008
What is a DSS? by Dan Power Editor, DSSResources.com "What is a DSS?" is a fundamental question that many have addressed over the years. It seems appropriate to...	DSS Foundations	Mar 20, 2009
How is Six Sigma related to DSS? For some readers Six Sigma may seem totally unrelated to Decision Support Systems. Others may not be quite certain what exactly "Six Sigma" ...	DSS Applications	Aug 07, 2005
What should managers know about business intelligence and data-driven decision support? by Dan Power Editor, DSSResources.COM Most managers want to make fact-based decisions. Many large organizations have implemented database syste...	DSS Foundations	Aug 13, 2012

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