Database Description with SDM: A Semantic Database Model pdf

... database management, database models, database semantics, database definition, database modeling, logical database design CR Categories: 3.73, 3.74, 4.33 1. INTRODUCTION Every database is a model ... can serve as a conceptual database model in the database design process; and, it can be used as the database model for a new kind of database management system. Key Words and Phrases: database ... formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models. An...

Tài liệu Work with the XML Document Object Model pdf

... Name" mdtData.Columns.Add(dcFirstName) Dim dcLastName As New DataColumn() dcLastName.ColumnName = "LastName" dcLastName.Caption = "Last Name" mdtData.Columns.Add(dcLastName) ... wfrmHowTo12_3.aspx.vb: Creating a DataTable Object from Scratch Private Sub Page_Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initialize ... the page loads, you can enter a few names. Enter the last and first names, and then click the button labeled Add to DataTable. When you have added a few names, click the button labeled Create...

DETERMINANTS OF CREDIT TO HOUSEHOLDS IN A LIFE-CYCLE MODEL pdf

... (Banque de France), Carsten Detken (ECB) and Katerina Šmídková (Czech National Bank) are workstream coordinators. Xavier Freixas (Universitat Pompeu Fabra) acts as external consultant and Angela ... we calculate ﬁve-year averages for all variables and usethese averages as cross-sectional data in our estimations.Among the variables present in speciﬁcation (22), individual income uncertaintyincu ... Świętokrzyska 11/21, Poland and Warsaw School of Economics; e-mail: michal.rubaszek@nbp.plDobromil Serwaat National Bank of Poland, 00-919 Warszawa, ul. Świętokrzyska 11/21, Poland and Warsaw School...

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Báo cáo khoa học: "Document Classification Using a Finite Mixture Model" pdf

... Classification Using a Finite Mixture Model Hang Li Kenji Yamanishi C&C Res. Labs., NEC 4-1-1 Miyazaki Miyamae-ku Kawasaki, 216, Japan Email: {lihang,yamanisi} @sbl.cl.nec.co.j p Abstract ... may individually appear in the category only very rarely; polysemy problem how to determine that a word like 'ball' in a document refers to a 'tennis ball' and not a 'soccer ... 'shot' uniformly because they are assigned to the same cluster kt (see Tab. 5). 'Racket' may, however, be more indicative of Cl than 'shot,' because it appears...

Spatial modelling of air pollution in urban areas with GIS: a case study on integrated database development doc

... are loaded intothe relational database, so that the geospatial coordinate dataof the GIS data layers are stored in the relational data tables.Since the relational database supports relationships ... state values of variables aretransferred and incorporated into the GIS database, whichcan be useful in managing data time series. To accommodatelarge data sets and many variables such as air ... furthermore for spatial anal-ysis, display and visualization. As with the previous data,meteorological data are also preprocessed from the database storage into the input formats for air quality dispersion...

Supporting Finite Element Analysis with a Relational Database Backend docx

... representation of a domain’s ontology, including its data model. The database schema is an example of a data model — a file format is not! A populated database — an instantiated schema, — stores facts ... Element Analysis with a Relational Database Backend 29 Appendix D: The Histogram Bar Selected Grains DX Object - 2 - Supporting Finite Element Analysis with a Relational Database Backend ... Analysis with a Relational Database Backend 19 At this point, we have a grain selection and the face list on those grains, and a triangle selection and the face list containing those triangles....

mapping your objects to database tables with linq to sql

... Framework. You mapped database tables to .NET classes and populated objects with live data. You also saw how seamlessly data can be retrieved and updated. Finally, you saw how richer capabilities ... update and delete database rows. Application developers can override these actions with custom code. In this way, alternative facilities like database stored procedures can be automatically ... generation tool, you can still specify these methods in a partial class of your own. a. Custom query capabilities are especially important when a database is already in-place and optimized with...

Practical Database Programming With Visual C#.NET- P6

... Method") { FacultyDataAdapter.SelectCommand = accCommand; FacultyDataAdapter.Fill(accDataTable); if (accDataTable.Rows.Count > 0) FillFacultyTable(ref accDataTable); else MessageBox.Show("No ... local variable with a data type var. The C# 2008 will be able to automatically convert this var to any suitable data type. In this case, it is a data table, when it sees it. An iteration variable ... Read() method is True, which means that a valid data is read out from the DataReader. This method will return a False if no valid data can be read out from the DataReader, which means that all...

Practical Database Programming With Visual C#.NET- P7

... (user_name=@Param1 ) AND (pass_word=@Param2)"; SqlDataAdapter LogInDataAdapter = new SqlDataAdapter(); DataTable sqlDataTable = new DataTable(); SqlCommand sqlCommand = new SqlCommand(); ... "WHERE faculty_name LIKE @name"; SqlDataAdapter FacultyDataAdapter= new SqlDataAdapter(); SqlCommand sqlCommand = new SqlCommand(); SqlDataReader sqlDataReader; DataTable sqlDataTable = ... DataContext is a special class that provides a connection to the database and trans-lates Standard Query Operators to the standard SQL statements to access our database. In order to avoid access...

Practical Database Programming With Visual C#.NET- P8

... OracleParameter(); OracleDataAdapter FacultyDataAdapter = new OracleDataAdapter(); OracleCommand oraCommand = new OracleCommand(); DataTable oraDataTable = new DataTable(); OracleDataReader oraDataReader; ... "DataAdapter Method") { FacultyDataAdapter.SelectCommand = oraCommand; FacultyDataAdapter.Fill(oraDataTable); if (oraDataTable.Rows.Count > 0) FillFacultyTable(ref oraDataTable); ... parameter ’ s name and value later. All other data components are also created in this part, which include DataAdapter, Command, DataTable, DataReader, and DataSet, used for the LINQ to DataSet query...

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