Research Projects in DSRG Lab
... Operators selectively spill data to disk to off-set the system overload with adaptive re-load to improve performance ...
... Operators selectively spill data to disk to off-set the system overload with adaptive re-load to improve performance ...
*What is the unit of Security?* Eerke Boiten, university of Kent, UK
... [and within such group of entries] we find l different values for a collection of sensitive attributes ...
... [and within such group of entries] we find l different values for a collection of sensitive attributes ...
Introduction to Database Systems
... A data model is a collection of concepts for describing data. A schema is a description of a particular collection of data, using the given data model. The relational model of data is the most widely used model today. ...
... A data model is a collection of concepts for describing data. A schema is a description of a particular collection of data, using the given data model. The relational model of data is the most widely used model today. ...
Relational Database Technology Introduction into key Concepts of
... exciting aspects of modern relational database technology, this course is for you. It delivers the core information you need and will get you well prepared not only for any subsequent more advanced course in relational database systems and computer science, but also for your future job assignments i ...
... exciting aspects of modern relational database technology, this course is for you. It delivers the core information you need and will get you well prepared not only for any subsequent more advanced course in relational database systems and computer science, but also for your future job assignments i ...
Implementing Data Models and Reports with Microsoft SQL Server
... Business intelligence (BI) is becoming increasingly important for companies of many different sizes and types because of the competitive edge it can help to give them. The combined capabilities of Microsoft SQL Server 2012 and Microsoft SharePoint 2010 make it easier than ever for companies to devel ...
... Business intelligence (BI) is becoming increasingly important for companies of many different sizes and types because of the competitive edge it can help to give them. The combined capabilities of Microsoft SQL Server 2012 and Microsoft SharePoint 2010 make it easier than ever for companies to devel ...
2515 - Distributed Databases
... • explain how databases may be stored in more than one physical location • explain the methods by which this distribution may be carried out • explain reasons why distribution would be carried out ...
... • explain how databases may be stored in more than one physical location • explain the methods by which this distribution may be carried out • explain reasons why distribution would be carried out ...
CS221 Lecture: The Relational Data Model last revised June 25, 2012
... 1. The representation of both entities and relationships using the same basic approach: tables. 2. The “key” concept. 3. The related notion that identity is established by values of attributes. 4. We now consider a few more. B. The relational model requires attributes to be simple, atomic, single va ...
... 1. The representation of both entities and relationships using the same basic approach: tables. 2. The “key” concept. 3. The related notion that identity is established by values of attributes. 4. We now consider a few more. B. The relational model requires attributes to be simple, atomic, single va ...
Database2 Module Specification
... contribution to a simple data store. The user can create a table containing fields of the main database types, present data using Smarty templates, perform basic searches and export data to csv format. The current Moodle database module has a number of deficiencies due to the database structure supp ...
... contribution to a simple data store. The user can create a table containing fields of the main database types, present data using Smarty templates, perform basic searches and export data to csv format. The current Moodle database module has a number of deficiencies due to the database structure supp ...
Temple University – CIS Dept. CIS661 – Principles of Data
... the database remains in a consistent (correct) state despite system failures (e.g., power failures and operating system crashes) and transaction failures Concurrency-control manager controls the interaction among the concurrent transactions, to ensure the consistency of the database ...
... the database remains in a consistent (correct) state despite system failures (e.g., power failures and operating system crashes) and transaction failures Concurrency-control manager controls the interaction among the concurrent transactions, to ensure the consistency of the database ...
Spatial Database Systems
... A spatial database is a database that is enhanced to store and access spatial data or data that defines a geometric space. Data on spatial databases are stored as coordinates, points, lines, polygons and topology. Spatial RDBMS allows to use SQL data types, such as int and varchar, as well as spatia ...
... A spatial database is a database that is enhanced to store and access spatial data or data that defines a geometric space. Data on spatial databases are stored as coordinates, points, lines, polygons and topology. Spatial RDBMS allows to use SQL data types, such as int and varchar, as well as spatia ...
Attacking Data Stores
... Rely on application-layer controls to enforce segregation of access Already have the data, why escalate? Gain access to other hosted application data o Compromise the OS of the database server o Gain network access to access other systems o Establish network connection to own system for faster data ...
... Rely on application-layer controls to enforce segregation of access Already have the data, why escalate? Gain access to other hosted application data o Compromise the OS of the database server o Gain network access to access other systems o Establish network connection to own system for faster data ...
2011題目
... Suppose we have a relationship set borrower between customer and loan as shown in Figure 1. 1) Draw an E-R Diagram for the application system in Figure 1. (Please show the mapping cardinalities.) 2) What does it mean by the total participator, and which one is it? 3) What does it mean by the partial ...
... Suppose we have a relationship set borrower between customer and loan as shown in Figure 1. 1) Draw an E-R Diagram for the application system in Figure 1. (Please show the mapping cardinalities.) 2) What does it mean by the total participator, and which one is it? 3) What does it mean by the partial ...
Spring 2013 Professor Emile Chungtien Chi
... 30% Several graded programming assignments. May be done in groups of at most 2 students 1st exam in class 20% Will test both theory and programming skills. Individual 2nd exam in class 30% Will test both theory and programming skills. Individual Project 20% One larger programming assignment of ...
... 30% Several graded programming assignments. May be done in groups of at most 2 students 1st exam in class 20% Will test both theory and programming skills. Individual 2nd exam in class 30% Will test both theory and programming skills. Individual Project 20% One larger programming assignment of ...
What is a Database?
... The key to an entity that is usually the most important piece of information about the entity. The primary key needs to be as unique as possible. Names, for example, are very poor keys while ID numbers, account numbers or work order numbers are better. ...
... The key to an entity that is usually the most important piece of information about the entity. The primary key needs to be as unique as possible. Names, for example, are very poor keys while ID numbers, account numbers or work order numbers are better. ...
Introduction to Database Systems
... A data model is a collection of concepts for describing data in a DB, including Objects Relationships among objects Constraints on objects & relationships Operations on objects & relationships A schema is a description of a particular collection of data, using a given data model. An instan ...
... A data model is a collection of concepts for describing data in a DB, including Objects Relationships among objects Constraints on objects & relationships Operations on objects & relationships A schema is a description of a particular collection of data, using a given data model. An instan ...
Dealing with Inconsistent Data Sources
... Is it possible to rewrite a query Q that expects consistent answers into a new query Q0 , whose usual answers from D are the consistent answers to Q? In the example, the query can be transformed into a standard SQL query to be posed to the original database SELECT FROM ...
... Is it possible to rewrite a query Q that expects consistent answers into a new query Q0 , whose usual answers from D are the consistent answers to Q? In the example, the query can be transformed into a standard SQL query to be posed to the original database SELECT FROM ...
HYPER Database System
... to maintain consistent snapshots of the transactional data. HyPer is a main-memory database system that guarantees the ACID properties of OLTP transactions and executes OLAP query sessions (multiple queries) on the same, arbitrarily current and consistent snapshot. The utilization of the processor-i ...
... to maintain consistent snapshots of the transactional data. HyPer is a main-memory database system that guarantees the ACID properties of OLTP transactions and executes OLAP query sessions (multiple queries) on the same, arbitrarily current and consistent snapshot. The utilization of the processor-i ...
CHAPTER 1: DATABASES AND DATABASE USERS
... (a) The StudentNumber should be unique for each STUDENT record (key constraint). (b) The CourseNumber should be unique for each COURSE record (key constraint). (c) A value of CourseNumber in a SECTION record must also exist in some COURSE record (referential integrity constraint). (d) A value of Stu ...
... (a) The StudentNumber should be unique for each STUDENT record (key constraint). (b) The CourseNumber should be unique for each COURSE record (key constraint). (c) A value of CourseNumber in a SECTION record must also exist in some COURSE record (referential integrity constraint). (d) A value of Stu ...
Hive - DWH Community
... • Can store massive amounts of data • Gigabytes, terabytes, and even petabytes of data in a table ...
... • Can store massive amounts of data • Gigabytes, terabytes, and even petabytes of data in a table ...
description - hutchison
... – Files : reading, writing, parsing (basics only) – Structures : Lists, Stacks, Queues, Trees (basics only) – Scalable data serving components : RDBMS, NoSQL, etc… ...
... – Files : reading, writing, parsing (basics only) – Structures : Lists, Stacks, Queues, Trees (basics only) – Scalable data serving components : RDBMS, NoSQL, etc… ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.