... 1.1 Connecting to an ODBCDataSource Problem You want to access your datasource using an ODBC provider from your .NET application. Solution Use the ODBC .NET data provider to access data ... access data exposed through an ODBC driver. The sample code contains a single event handler: Connect Button.Click Creates an OdbcDataAdapter and uses it to fill a DataTable with the Category ... Categories"; OdbcDataAdapter da = new OdbcDataAdapter(sqlSelect, ConfigurationSettings.AppSettings[" ;Odbc_ ConnectString"]); // Create the table, fill it, and bind the default view to the...
... Server data is not the only datasource available to us, which other data sources can we use? In this chapter, we’ll explore those other data sources, and we will developreporting projects using data ... Creating a Data TableSince we already have the dataset in the project, it’s time to add the data table to it. Please usethe following steps to add a data table inside the dataset:1. You can go to ... the dataset in the project, it’s time to add a data table to it. Please usethe following steps to add a data table inside the dataset:1. You can go to the dataset designer in two ways: double-click...
... directions to finish importing the desired SQL Server data tableor data view into the current workbook.How To To connectto SQL Server data, do the following:CHAPTER 5 ■ CONNECT TO OTHER DATABASES ... directly to the next step. In Excel 2003, click Data ➤Import External Data ➤Import Data. Click the New Source button. Then, in the What Kind of Data Source Do You Want toConnectTo list, ... the What Kind of DataSource Do You Want toConnect To, select ODBC DSN, andclick Next.5. In the ODBCData Sources list, select MS Access Database, and click Next.6. Browse to and select the...
... Topic Objective To describe how toconnect to a datasource by using ADO.NET. Lead-in Connecting to a datasource is the first step in data access. Note Module 3: Using ADO.NET to ... SQLConnection and ADOConnection. The SQLConnection object defines how toconnectto SQL Server databases and the ADOConnection object allows you to establish a connection to a database through ... Categories Topic Objective To explain how to use stored procedures to retrieve data in a database. Lead-in Like ADO, ADO.NET allows developers to use stored procedures to modify data. 42...
... the connection string to the constructor SqlConnection mySqlConnection = Using a SqlConnection Object toConnectto a SQL Server Database You create a SqlConnection object using the SqlConnection() ... server=localhost;database=Northwind;uid=sa; mySqlConnection.ConnectionTimeout = 15 mySqlConnection.Database = Northwind mySqlConnection.DataSource = localhost mySqlConnection.PacketSize = 8192 mySqlConnection.ServerVersion ... System .Data; using System .Data. SqlClient; class ConnectionPooling { public static void Main() { // create a SqlConnection object toconnectto the database, // setting max pool size to...
... the Connection and reopen it. Closed The Connection is closed. Connecting The Connection is establishing access to the database. Executing The Connection is running a command. Fetching The Connection ... ones. This is because the first connection makes the actual connection to the database. When it is closed, it's stored in the connection pool. When the connection is then opened again, ... and closed. You use the Connection object's State property to get the current state of the connection to the database. The State property returns a constant from the ConnectionState enumeration....
... Combining Data in Tables from Heterogeneous Data Sources Problem You want to create a report that is based on data from tables in more than one data source. Solution Use ad-hoc connector names ... retrieves data from both a SQL Server table and a Microsoft Access table to create a single result set. Specifically, Northwind Order data is retrieved from SQL Server and Northwind Order Details data ... System.Configuration; using System .Data; using System .Data. SqlClient; // . . . // Fill the table with data from SQL Server and MS Access. String sqlSelect = "SELECT o.OrderID, o.CustomerID, o.OrderDate,...
... method of the DataAdapter is used to fill a DataSet, the column names used in the DataSet default to the column names defined in the data source. A DataAdapter has a collection of DataTableMapping ... names in the datasource or to map the tables returned from a batch query to DataTable objects that already exist within the DataSet. Each table mapping object has a collection of DataColumnMapping ... is used to fill multiple tables within a DataSet, the table names default to Table, Table1, Table2, and so on. You can use table mapping to rename tables created within the DataSet to match...
... Orders. DataTable dt = new DataTable( ); da.Fill(dt); // Bind the default view of the table to the grid. dataGrid.DataSource = dt.DefaultView; cancelButton.Enabled = true; dataGrid.ReadOnly ... SqlCommand(sqlText, conn, tran); // Create a DataAdapter to retrieve all Orders. SqlDataAdapter da = new SqlDataAdapter(cmd); // Define a CommandBuilder for the DataAdapter. SqlCommandBuilder cb ... access to a resource by concurrent transactions. Isolation level defines the degree to which one transaction must be isolated from other transactions. A higher isolation level increases data...
... Understanding Data Sources and Data Formats A datasource is a place from which Flash can load external data (that is, data not directly programmed into the movie). For example, Flash can load data ... a data source. Data transfer is the act of retrieving data from a source or sending data from Flash to another application. In this section, you'll learn about the different types of data ... of data sources as well as the Flash objects and methods used to communicate with these sources in the data transfer process. Any data that you plan to load into Flash from an external source...
... The token #IMPLIED means that the attribute does not have to be present. To define a default value, you could replace the #IMPLIED token with either True or False. Although the tokens CDATA ... information to character data. This extra information can help to convey additional context, or metadata, or it can define the structure of the data contained within the tags (for example, to define ... following topics: ! Conforming to an XML Grammar ! Validating XML Documents with DTDs ! Validating XML Documents with Schemas Module 9: Using XML to Exchange Data iii Instructor Notes...
... original data source. This DataSet is then used to apply the changes to a second data source using its DataAdapter; the DataSet for the second datasource is reloaded. Finally, the first datasource ... Recipe 4.7 Updating a DataSource with Data from a Different DataSource Problem You want to update a datasource using changes made to another datasource for data replication or auditing ... to retrieve the data or the original source of the data. The DataSet tracks changes made todata by maintaining multiple versions of each row allowing the datato be reconciled later to a data...
... [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... it to the DataSet. da = new SqlDataAdapter("SELECT * FROM [Order Details]", ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); ... NorthwindServiceCS( ); // Load the DataSet containing orders and order details. DataSet ds = nws.LoadOrders( ); // Bind the default view of the orders table to the grid. dataGrid.DataSource = ds.Tables[ORDERS_TABLE].DefaultView;...
... IPX/SPX The native protocol of Novell Netware networks. TCP/IP Sockets [ Team LiB ] Recipe 1.6 Using an IP Address toConnectto SQL Server Problem You want toconnectto a SQL Server using ... Macintosh to communicate with SQL Server using native AppleTalk protocol. Banyan VINES Supports Banyan VINES Sequenced Packet Protocol (SPP) across Banyan VINES IP network protocol. Multiprotocol ... network protocol. Multiprotocol Automatically chooses the first available network protocol to establish a connection generally with performance comparable to using a native network library....