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Database Integrity, Security and Recovery
Database Integrity, Security and Recovery

... Entity integrity constraint Referential integrity Business rules Database consistency ...
DATABASE CONNECTIVITY TO MYSQL
DATABASE CONNECTIVITY TO MYSQL

... (3.Returns Result obtained against Query. Some RDBMS like MS Access requires ODBC (Open Database Connection), which can be connect through JDBC-ODBC driver(jdbc.odbcbridge). ...
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... – Multi-user database that supports a large group of users or an entire organization ...
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...  Collection of tables  Tables are collections of columns and rows  Rows hold the data  Filling tables does not create relations between them carName = myDS.Tables[“Inventory"].Rows[0][“PetName”] ...
An Overview of Data Warehousing and OLAP Technology
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... consists of a pointer (foreign key often uses a generated key for efficiency) to each of the dimensions that provide its multidimensional coordinates, and stores the numeric measures for those coordinates. ...
Logical Relational Data Modeling Standards
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... set theory. It was first formulated and proposed in 1969 by Edgar Codd with aims that included avoiding, without loss of completeness, the need to write computer programs to express database queries and enforce database integrity constraints. “Relation” is a mathematical term for “table”, ...
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...  defines no tag set or semantics  provides a facility to define tags and the structural relationships between them ...
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... • Relationships can have attributes • These describe features pertaining to the association between the entities in the relationship ...
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Olawale_MSBI%20Expert_Germany_Updated

... Responsibilities were: 1. Involved in Designing, Developing of the ETL (Extract, Transformation and Load) strategy to populate the data from various source systems feeds using SSIS to populated the newly data warehouse created. 2. Created Data Quality management system and Master Data Service for th ...
Data Warehouse System
Data Warehouse System

... Involves filtering out or repairing invalid data prior to being stored in the warehouse Operational data are “dirty” for many reasons: clerical, data entry, computer program errors, misspelled names, and blank fields. ...
Object-Oriented Integration of Legacy Systems - Maintaining
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... managing foreign key information to enforce referential integrity, can be implemented, but any major, subsequent change to the object model will lead to significant changes in the code of the affected classes. In addition, another critical issue is application reliability, as far as object data inte ...
Heterogenous XML-based Data Integration
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... $p in document("parts.xml")//part[partno = $i/partno], $s in document("suppliers.xml")//supplier[ suppno = $i/suppno] order by $p/description, $s/suppname where $i/price < 1000 ...
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... Abstraction is used to hide complexity and allow for a separation of ...
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... • Resource contention is a key player in SSIS performance issues • Other SSIS or ETL processes • External processes ...
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... Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
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... quality measures, constraints) plus operations and events (e.g., corrections, error messages). This information helps users employ the data correctly, and helps managers plan data quality improvements. Our work explores techniques for coordinating and propagating such information in a multi-tier dat ...
View - University of Houston
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... 1.  Describe the stages of database design, various database architectures and data models. Clearly elaborate the these fundamental relational database concepts. 2.  Explain the concept of entity­relationship (ER) model, and relational model. Apply ER modeling concepts to precisely capture problem r ...
NoSQL DATABASE - COW :: Ceng - Middle East Technical University
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... NoSQL System The idea behind the NoSQL: Giving up ACID constraints, one can achieve much higher performance and scalability. ACID= Atomicity, Consistency, Isolation, and ...
Fall 2008, INFS614 - GMU Computer Science
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... • If the Database and application are simple, well-defined and not expected to change. • If there are stringent real-time requirements, that may not be met due to DBMS overhead. • If access to data by multiple users is not ...
Why You Should Run TPC-DS: A Workload Analysis
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... 33nd International Conference on Very Large Data Bases, September 23-27 2007, University of Vienna, Austria ...
Chapter 8 - Databases
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... Like variables in a program, but unlike text files, database software is designed to keep the inserting and accessing of data very fast, even for large amounts of data. Database software maintains its performance by building indexes as data is added to the database to allow the computer to jump quic ...
What is AutoCAD?
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... Database Connectivity • Powerful way to link drawing objects with data. • More flexible than using block attributes. • Need to keep drawings and databases synchronized for accuracy. • Linking of databases and AutoCAD drawing is referred to as external database access. • It enables you to a) Create ...
Table Names and Properties
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...  an index is never explicitly referenced in a SELECT statement; the syntax of SQL does not allow this;  during the processing of a statement, SQL itself determines whether an existing index will be used;  an index may be created or deleted at any time;  when updating, inserting or deleting rows, ...
Session Title
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... • Largely irrelevant after SQL Server 7 ...
< 1 ... 320 321 322 323 324 325 326 327 328 ... 492 >

Entity–attribute–value model

Entity–attribute–value model (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In mathematics, this model is known as a sparse matrix. EAV is also known as object–attribute–value model, vertical database model and open schema.
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