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 sys...

Ngày tải lên: 30/03/2014, 22:20

... 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...

Ngày tải lên: 21/01/2014, 12:20

... (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 use these averages as cross-sectional data in our estimations. Among the variables present in specification (22), individual income uncertaint...

Ngày tải lên: 29/03/2014, 06:21

... 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...

Ngày tải lên: 31/03/2014, 21:20

... are loaded into the relational database, so that the geospatial coordinate data of the GIS data layers are stored in the relational data tables. Since the relational database supports relationships ... state values of variables are transferred and incorporated into the GIS database, which can be useful in managing data time series. To accommodate large data sets and many variables such as...

Ngày tải lên: 23/03/2014, 02:20

... 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...

Ngày tải lên: 30/03/2014, 22:20

... 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 automa...

Ngày tải lên: 06/08/2013, 17:30

... 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...

Ngày tải lên: 17/10/2013, 19:15

... (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 sqlDataTabl...

Ngày tải lên: 20/10/2013, 11:15

... 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(...

Ngày tải lên: 20/10/2013, 11:15