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Data Matters Most: But where has all the semantics gone
Data Matters Most: But where has all the semantics gone

... 2. The database is designed independently of the application programs The database is designed before the application programs 3. The database schema evolution translates the evolution of the functional requirements 4. The database is described by (at least) two schemas: • the conceptual schema: abs ...
Precision Considerations for Analysis Services Users
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... Usually, you want values that are both accurate and consistent; but this is not always possible. The scenario in this paper is an example of inaccuracy and inconsistency that can be seen by querying an Analysis Services database. Please note that this is not caused by SQL Server™ 2005 Analysis Servi ...
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... – Organized based on a “primary key” – Usually used for backup and archive files • Because they need updating only rarely ...
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... information would you want to keep about each employee? ...
Abstract - The number of open source database management
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... quite a daunting task to subject each database system under consideration to all the available benchmark tests and tools and then make a comparison of the results. [2, 3, 4, 5, 6]. Secondly each vendor usually publishes test results of their system using a particular benchmark or benchmarks. However ...
On Efficient Part-match Querying of XML Data
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... books,book,id; books,book,title and books,book,author. Points (0,1,2); (0,1,4) and (0,1,6) are created using idT of element and attribute names, idLP = 0, 1 and 2. For example, the path to value The Two Towers. The labelled path books,book,title with idLP 1 belongs. Vector (1,0,1,3,5) is created usi ...
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... Each contains a single script (for now) that will be either pre-pended or post-pended during project build More on that later… ...
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... INTRODUCTION TO JDBC JDBC is an PI for accessing data in relational databases such as Oracle, MySQL etc. from Java in a standard way using the SQL language. JDBC actually lets you access any tabular data sources like relational databases, spreadsheets or even flat files. You pass SQL to java methods ...
Week 14 - California State University, Sacramento
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... R. Ching, Ph.D. • MIS • California State University, Sacramento ...
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... Use simple columns or literals in conditionals Numeric field comparisons are faster Equality comparisons are faster than inequality Transform conditional expressions to use literals Write equality conditions first AND: use condition most likely to be false first OR: use condition most likely to be t ...
Database applications - The University of Winnipeg
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... Database system concepts and architecture Example of a natural language interface: (from MS SS7) English Query translates a natural-language question about data in the database to a set of SQL SELECT statements that can then be executed against the SQL Server database to get the answer. For example ...
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... so-called “update window”. Both de-normalization and pre-materialization contradict the principles of database systems, as a second database is created. Consequently, the end-user applications do not operate on a central data repository anymore. As a consequence, OLAP-based tools cannot directly mod ...
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... Once you have access to a serer with MySQL installed, need to get a database instance created for you.  Usually created by a database administrator  Creates a database instance, userid and ...
Course_Syllabus_SQL Server - Avtech Institute of Technology
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... the benefit as the Industry recognition of your knowledge and proficiency with Microsoft products and technologies ...
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Part II, Multiple Choice Questions

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... Once you have access to a server with MySQL installed, need to get a database instance created for you.  Usually created by a database administrator  Creates a database instance, userid and ...
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defurio_reveiwmarkup.pdf

... • ADBCdemo.mdb: Both PDF demo files use this database. Before using the demos, you must transfer ADBCdemo.mdb to your hard drive, then register it with the ODBC Data Source Administrator. Instructions for registering the database are contained in the ADBCdemo.pdf file or in the section Registering ...
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... Windows XP operating systems. If you have a MS SQL Server instance running on a Win2k server, then it is better to create the symmetric keys using the TRIPLE_DES algorithm, for instance. Otherwise, your script will fail when it is run on a sql server which is installed on Windows 2000 servers and Wi ...
A Trauma Registry System Using the SAS System and dBASE III Plus
A Trauma Registry System Using the SAS System and dBASE III Plus

... attributes recorded per patient. Because the physicians who would be using the system anticipated a need to use any and all recorded attributes, elimination of nonessential data entities was not possible. Even though the approximately 3000 data entities could be organized into many smaller clusters, ...
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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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