Data Access Layer
Data Access Layer
... } CHAPTER 8 ■ DATA ACCESS LAYER 174 private void DisconnectFromDatabase() { if (_databaseConnection.State != ConnectionState.Open) { _databaseConnection.Close(); } } private IDataReader ExecuteReadCommand(IDbCommand ... tries to convert from one to the other (from objects to database tables or vice versa). CHAPTER 8 ■ DATA ACCESS LAYER 164 DATABASE KEYS Database tables should alwa...
Ngày tải lên: 03/10/2013, 01:20
Module 9: The Transactional Data Access Layer
... same data access technologies as that of the nontransactional DAL. The following data access technologies were covered in Module 8, “The Nontransactional Data Access Layer : ! Microsoft Data Access ... modules that focus on the data access layer (DAL). In Module 8, “The Nontransactional Data Access Layer, ” you learned about data retrieval. In this module, you wi...
Ngày tải lên: 05/11/2013, 12:15
Tài liệu Module 8: The Nontransactional Data Access Layer doc
... Nontransactional Data Access Layer Microsoft Data Access Components Other Data Sources Other Data Sources Relational Databases Relational Databases Data Object Interfaces Data Object Interfaces Application Programming Interfaces Application Programming Interfaces ADO ... Nontransactional Data Access Layer 5 # ## # Nontransactional DAL Technologies ! Micro...
Ngày tải lên: 21/12/2013, 06:17
Data Access and Networking
... CHAPTER 6 ■ DATA ACCESS AND NETWORKING 147 < ;data: DataGrid x:Name="grdData" Margin="15" AutoGenerateColumns="False"> < ;data: DataGrid.Columns> < ;data: DataGridTemplateColumn ... Grid.Column="1" /> </Grid> </DataTemplate> < /data: DataGridTemplateColumn.CellTemplate> < /data: DataGridTemplateColumn> < ;dat...
Ngày tải lên: 05/10/2013, 03:20
Introduction to Data Access
... java.sql.SQLException; public class NewsletterSubscriptionDataAccess { private DataSource dataSource; public void setDataSource(DataSource dataSource) { this.dataSource = dataSource; } public void addNewsletterSubscription(int ... NewsletterSubscriptionDataAccess subscriptionDataAccess; public void subscribeMemberToNewsletter(Member member, String email) throws MyDataAccessException { subscri...
Ngày tải lên: 05/10/2013, 04:20
Data Access
... CHAPTER 9 ■ DATA ACCESS 211 7575Ch09.qxp 4/27/07 1:05 PM Page 211 system .data windows system.webServer mscorlib system .data. oledb system .data. oracleclient system .data. sqlclient configProtectedData ... Microsoft.Practices.EnterpriseLibrary .Data let opener commandString = let database = DatabaseFactory.CreateDatabase() database.ExecuteReader(CommandType.Text, commandString) CHAPTE...
Ngày tải lên: 05/10/2013, 10:20
Tài liệu java Data Access JDBC, JNDI, and JAXP pptx
... Sets 89 Creating DatabaseMetaData objects A Connection object represents a database connection and also instantiates a DatabaseMetaData object with the getMetaData() method. The DatabaseMetaData object ... DriverManager.getConnection(jdbcUrl,user,pwd); //Initialize a DatabaseMetaData object DatabaseMetaData dmd = conn.getMetaData(); //Retrieve database name and version String dbname = dmd...
Ngày tải lên: 10/12/2013, 02:15
Tài liệu Bài 6: Data Access and Viewingwith .NET docx
... System .Data. SqlTypes System .Data. SqlTypes . . – – C C á á c c l l ớ ớ p p cơ cơ b b ả ả n n trong trong System .Data System .Data : : DataSet DataSet , , DataTable DataTable , , DataRow DataRow , , DataColumn DataColumn , , DataRelation DataRelation , Constraint , Constraint – – C C á á c c l l ớ ớ p p đ đ ặ ặ c c bi bi ệ ệ t t : ... Overview Using Database Connections Using...
Ngày tải lên: 13/12/2013, 09:16