Document
... 1.What is a foreign key? What conditions must be satisfied for the values of a foreign key? Foreign key (FK) is defined as follows: i) Consider two relation schemas R1 and R2; ii) The attributes in FK in R1 have the same domain(s) as the primary key attributes PK in R2; the attributes FK are said to ...
... 1.What is a foreign key? What conditions must be satisfied for the values of a foreign key? Foreign key (FK) is defined as follows: i) Consider two relation schemas R1 and R2; ii) The attributes in FK in R1 have the same domain(s) as the primary key attributes PK in R2; the attributes FK are said to ...
MIST Reporting
... http://ServerName/Reports (or http://localhost/Reports if you're running the browser on the same box with SQL Server 2005 itself). ...
... http://ServerName/Reports (or http://localhost/Reports if you're running the browser on the same box with SQL Server 2005 itself). ...
hot-aisle / cold-aisle containment: putting a lid on rising
... and greater data center densities have increased the heat generated in each rack, causing computer room air conditioning (CRAC) units to work harder than ever. Longstanding best practices call for data center racks to be arranged in hot-aisle / cold-aisle configurations; the fronts of racks in one r ...
... and greater data center densities have increased the heat generated in each rack, causing computer room air conditioning (CRAC) units to work harder than ever. Longstanding best practices call for data center racks to be arranged in hot-aisle / cold-aisle configurations; the fronts of racks in one r ...
L4 Comp 1d
... repository, commonly referred to as a database. The DBMS has many features including multi-user access/updates, control of data redundancy, maintenance of data security and integrity, audit trails, and transaction processing. Information Systems (IS) refers to the discipline which studies or informs ...
... repository, commonly referred to as a database. The DBMS has many features including multi-user access/updates, control of data redundancy, maintenance of data security and integrity, audit trails, and transaction processing. Information Systems (IS) refers to the discipline which studies or informs ...
The Need for Smart Data Visualization
... In an ideal world, data visualization tools should not only provide information on what is expected but also help to decipher what is not expected. The tools should be a means to identify outliers and unusual trends, account for various types of data (i.e. structured vs. unstructured), utilize the a ...
... In an ideal world, data visualization tools should not only provide information on what is expected but also help to decipher what is not expected. The tools should be a means to identify outliers and unusual trends, account for various types of data (i.e. structured vs. unstructured), utilize the a ...
IntroductionToTabularModel_PublishedOnEnpointe
... Over the last few years, trends and demand of BI have significantly changed. Now, users are more interested in having the hold on their data and analyze it according to their own run-time requirement on the spot. Prior to that, they had to involve an IT professional to develop complex reports for th ...
... Over the last few years, trends and demand of BI have significantly changed. Now, users are more interested in having the hold on their data and analyze it according to their own run-time requirement on the spot. Prior to that, they had to involve an IT professional to develop complex reports for th ...
PPT File
... Whenever we have a multiple-level DBMS, its catalog, must be expanded to include information on how to map requests and data among the various levels. A DBMS uses additional software to refer the required mapping information to the catalog. Data independence is accomplished because, when the schema ...
... Whenever we have a multiple-level DBMS, its catalog, must be expanded to include information on how to map requests and data among the various levels. A DBMS uses additional software to refer the required mapping information to the catalog. Data independence is accomplished because, when the schema ...
Introduction to Big Data with Apache Spark
... Dependence – samples are supposed to be independent, but are not (ex: social networks) ...
... Dependence – samples are supposed to be independent, but are not (ex: social networks) ...
SQL
... Composite index: An index that contains more than one column. In both SQL Server 2005 and 2008, you can include up to 16 columns in an index, as long as the index doesn’t exceed the 900-byte limit. Both clustered and nonclustered indexes can be composite indexes. Unique Index: An index that ensu ...
... Composite index: An index that contains more than one column. In both SQL Server 2005 and 2008, you can include up to 16 columns in an index, as long as the index doesn’t exceed the 900-byte limit. Both clustered and nonclustered indexes can be composite indexes. Unique Index: An index that ensu ...
slides
... Focusing on the modeling and analysis of data for decision makers, not on daily operations or transaction processing ...
... Focusing on the modeling and analysis of data for decision makers, not on daily operations or transaction processing ...
auth3in
... different multiform data that can be found on the web and that are interesting to integrate in a data warehouse as external data sources. Our model allows the unification of these different data into a single framework, for purposes of storage and preparation for analysis. Data must indeed be proper ...
... different multiform data that can be found on the web and that are interesting to integrate in a data warehouse as external data sources. Our model allows the unification of these different data into a single framework, for purposes of storage and preparation for analysis. Data must indeed be proper ...
Opening vignette
... Bumble Beasley is a recently enrolled accounting major at your university. In a conversation about accounting information systems, he said: “I don’t know why we have to learn about flowcharts and data flow diagrams. One documentation technique should be enough; besides, both techniques give basicall ...
... Bumble Beasley is a recently enrolled accounting major at your university. In a conversation about accounting information systems, he said: “I don’t know why we have to learn about flowcharts and data flow diagrams. One documentation technique should be enough; besides, both techniques give basicall ...
Ch03 Data Warehouse
... Frees up capacity on in-house systems Frees up cash flow Makes powerful solutions affordable Enables solutions that provide for growth Offers better quality equipment and software Provides faster connections … more in the book © Pearson Education Limited 2014 ...
... Frees up capacity on in-house systems Frees up cash flow Makes powerful solutions affordable Enables solutions that provide for growth Offers better quality equipment and software Provides faster connections … more in the book © Pearson Education Limited 2014 ...
Raima Embedded Database for LabVIEW - At the
... share data between multiple targets – whether sharing information between CompactRIO devices or outside computers. The Raima Database API for LabVIEW provides programmers with a way to quickly and easily design data management functionality into their software applications using an intuitive and eas ...
... share data between multiple targets – whether sharing information between CompactRIO devices or outside computers. The Raima Database API for LabVIEW provides programmers with a way to quickly and easily design data management functionality into their software applications using an intuitive and eas ...
Decision Support Systems 1201311 Data Warehousing
... Definitions and Concepts • A data warehouse (DW) is a pool of data produced to support decision making; it is also a repository of current and historical data of potential interest to managers throughout the organization. • Data are usually structured to be available in form ready for analytical pr ...
... Definitions and Concepts • A data warehouse (DW) is a pool of data produced to support decision making; it is also a repository of current and historical data of potential interest to managers throughout the organization. • Data are usually structured to be available in form ready for analytical pr ...
Extract Transform Load (ETL) Offload Reduce Growing Data
... Solution: The Ample Big Data ETL Offload Process Ample Big Data provides solutions to solve the problems inherent in traditional data warehouse technologies by employing the NoSQL (Not Only SQL) database design, so that massive amounts of data can be stored and processed without the need to specify ...
... Solution: The Ample Big Data ETL Offload Process Ample Big Data provides solutions to solve the problems inherent in traditional data warehouse technologies by employing the NoSQL (Not Only SQL) database design, so that massive amounts of data can be stored and processed without the need to specify ...
NoSQL CA485 Ray Walshe 2015
... • To get data, we first access the row via the row name and then specify column key which is in the form column-family:column. In the example above, we first get the row ie.dcu.computing and then get a particular user with users:ray. To get multiple users, we can use a regular expression (or glob) ...
... • To get data, we first access the row via the row name and then specify column key which is in the form column-family:column. In the example above, we first get the row ie.dcu.computing and then get a particular user with users:ray. To get multiple users, we can use a regular expression (or glob) ...
Chapter 3
... B. have shorter lead time for implementation C. have central rather than local control D. contain more information E. are harder to navigate ...
... B. have shorter lead time for implementation C. have central rather than local control D. contain more information E. are harder to navigate ...
CRSP SuRvivoR-biaS-fRee uS mutual fund databaSe January 2010 quarterly update
... Some funds were found to exist in the database twice. 423 funds were removed to eliminate the duplication. dead funds clean up There is an existing issue where a fund appears to be dead (for example, the NAV data will end some significant period before the end date of the database), but it will not ...
... Some funds were found to exist in the database twice. 423 funds were removed to eliminate the duplication. dead funds clean up There is an existing issue where a fund appears to be dead (for example, the NAV data will end some significant period before the end date of the database), but it will not ...
Discovering Computers 2008
... required to analyze historical and current transactions Quick and efficient way to access large amounts of data ...
... required to analyze historical and current transactions Quick and efficient way to access large amounts of data ...
PPT file of GIS_Basics(dr.afzal).
... Expresses explicitly the spatial relationship between features such as two lines meeting perfectly at a point and a directed line having explicit left and right side. Necessary in for map overlay operations and network analysis. Simple Vector Data Consists of point, line and polygon ...
... Expresses explicitly the spatial relationship between features such as two lines meeting perfectly at a point and a directed line having explicit left and right side. Necessary in for map overlay operations and network analysis. Simple Vector Data Consists of point, line and polygon ...
Semantics2
... Serves as the interface to a source • Receive queries from a mediator • Plan and execute how to retrieve the data from its source • Transform data to global data model • Send to mediator For an SQL source, these are rather easy For a restricted capability source, may require • A series of queries on ...
... Serves as the interface to a source • Receive queries from a mediator • Plan and execute how to retrieve the data from its source • Transform data to global data model • Send to mediator For an SQL source, these are rather easy For a restricted capability source, may require • A series of queries on ...
ACIMS - Alberta Parks
... the Survey End Date. Note: this field must be completed. Species Code: ‘DOUBLE CLICK’ ON THE CELL TO USE AUTOFILL to select the appropriate species from the drop down menu. Please be sure to consider synonyms when documenting the species. If the species is NEW to Alberta and therefore not listed on ...
... the Survey End Date. Note: this field must be completed. Species Code: ‘DOUBLE CLICK’ ON THE CELL TO USE AUTOFILL to select the appropriate species from the drop down menu. Please be sure to consider synonyms when documenting the species. If the species is NEW to Alberta and therefore not listed on ...
UNDERSTANDING ACXIOM`S MARKETING PRODUCTS
... description follows. However, there are several important things to understand about Acxiom’s marketing data: • No individual record ever contains all the possible data described in this brochure, only a subset • Individual data variables may be combined to create modeled or inferred elements • N ...
... description follows. However, there are several important things to understand about Acxiom’s marketing data: • No individual record ever contains all the possible data described in this brochure, only a subset • Individual data variables may be combined to create modeled or inferred elements • N ...
LECTURE 5
... to expose its private data to other applications content providers Content provider exposes read/write access to the application's data Content providers implement a standard syntax for requesting and modifying data Content providers implement a standard mechanism for reading the returned data ...
... to expose its private data to other applications content providers Content provider exposes read/write access to the application's data Content providers implement a standard syntax for requesting and modifying data Content providers implement a standard mechanism for reading the returned data ...
Data model
A data model organizes data elements and standardizes how the data elements relate to one another. Since data elements document real life people, places and things and the events between them, the data model represents reality, for example a house has many windows or a cat has two eyes. Computers are used for the accounting of these real life things and events and therefore the data model is a necessary standard to ensure exact communication between human beings.Data models are often used as an aid to communication between the business people defining the requirements for a computer system and the technical people defining the design in response to those requirements. They are used to show the data needed and created by business processes.Precise accounting and communication is a large expense and organizations traditionally paid the cost by having employees translate between themselves on an ad hoc basis. In critical situations such as air travel, healthcare and finance, it is becoming commonplace that the accounting and communication must be precise and therefore requires the use of common data models to obviate risk.According to Hoberman (2009), ""A data model is a wayfinding tool for both business and IT professionals, which uses a set of symbols and text to precisely explain a subset of real information to improve communication within the organization and thereby lead to a more flexible and stable application environment.""A data model explicitly determines the structure of data. Data models are specified in a data modeling notation, which is often graphical in form.A data model can be sometimes referred to as a data structure, especially in the context of programming languages. Data models are often complemented by function models, especially in the context of enterprise models.