... [ Team LiB ] Recipe 9.5 Performing a Bulk Insert withSQLServer Problem Given many records in an XML file that you need to add to aSQLServer 2000 database, you need to perform a bulk ... System.Configuration; using System.Windows.Forms; using SQLXMLBULKLOADLib; using System .Data; using System .Data. SqlClient; private const String DATAFILENAME = ConfigurationSettings.AppSettings["Project_Directory"] ... a XML bulk load operation. The example defines an optional error log file, where the default is an empty string meaning that no error log is created. You can bulk load data into multiple parent-child...
... ConfigurationSettings.AppSettings[" ;Sql_ Msde_ConnectString"]); Manager and Query Analyzer are also shared. The System .Data. SqlClient class cannot automatically discover the port number of a named instance of SQLServer ... [ Team LiB ] Recipe 1.7 Connecting to a Named Instance of SQLServer or Microsoft Data Engine (MSDE) Problem You want to connect to a named instance of aSQLServer or Microsoft Data Engine ... understand what aSQLServer or MSDE named instance is and how to connect to one. The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to a named...
... in Example 9-14. Example 9-14. File: BinaryDataForm.cs // Namespaces, variables, and constants SqlDbType.Image parameter and pass in the BLOB as a Byte array. ã Create a DataRow and define ... Create parameter for insert command. SqlParameter prm; if(image != null) { // Add a parameter for the image binary data. prm = new SqlParameter("@BlobData", SqlDbType.VarBinary, ... than other data when reading witha DataReader since the data cannot be contained in a single row. The ExecuteReader( ) method of the Command object that is used to create the DataReader has...
... the DataSetand the data source. The DataAdapteris responsible for retrieving the data from the Commandobjectand populating the DataSet with the data returned. The DataAdapteris also ... laterbecame the Data Base Task Group. The Data Base Task Group released an important report in 1971 out-lining the Network Data Model, also known as the CODASYL Data Model or DBTG Data Model. This data model ... source, and anyapplicable parameters.❑ DataReader — The DataReaderobject provides fast, forward-only reading capability to quicklyloop through the records.❑ DataSet — The DataSetobject, along...
... 88Manually Populating a DataSet 89Using DataAdapters 89Using DataReaders 90DataTable 90RowState 91DataView 91Serialization 92DataTableReader 93Streaming 93Namespace Qualified Tables 94Indexing ... Engine 94DataSet, DataTable, DataReader, or an Object? 95Showing Data to Users without Any Manipulation 95Editing Data That Lives in One Table 95Editing Data Spread across More Than One Table ... as DataSets and DataViews. It also covers the various options for persisting data back to a database, and introduces new techniques in ADO.NET 2.0. Finally, it introduces the new APIsavailable...
... Discussion SQL Server 2000 introduced support for retrieving data in XML format using the FOR XML clause. The .NET SQLServerdata provider SqlCommand object has an ExecuteXmlReader( ) that allows ... return XML data, such as those witha FOR XML clause. The ExecuteXmlReader( ) method can also be used to return ntext data containing valid XML. For more information about the FOR XML clause, see ... retrieve an XML stream directly from SQL Server, where it returns an XmlReader that contains the results of the SQL query. The ExecuteXmlReader( ) method can only be used withSQL statements that...
... Team LiB ] Recipe 4.7 Updating aData Source withData from a Different Data Source Problem You want to update adata source using changes made to another data source for data replication ... Creates a new DataSet containing only the records that have changed in the original data source. This DataSet is then used to apply the changes to a second data source using its DataAdapter; ... allowing the data to be reconciled later to adata source using a DataAdapter. The data source to which the DataSet is reconciled is usually, but does not have to be, the original data source....
... string is passed to a DataAdapter control, filling adata table. The data is then displayed when the data source of the DataGrid control is set to the data table. Comments You can enhance this ... the txtSQLString text and create adata table; then set the ' data source of the data grid. odaDisplay = New OleDb.OleDbDataAdapter(Me.txtSQLString.Text, mcnn) odaDisplay.Fill(dtDisplay) ... creates the new data adapter called odaDisplay passes the Text property of txtSQLString, and then fills the dtDisplay data table. dtDisplay is then set to the DataSource property of the data...
... information.What Is the Difference Between aDataWarehouse and a Data Mart?The difference between the terms datawarehouse and data mart is largely a matter ofperspective. Adata mart was classically ... balances such as inventory on hand oraccount balances.Getting Data into the Data Warehouse Because the datawarehouse is separate from all the other systems, an important part of the data warehouse ... create a separaterelational database witha design and an operational approach that is optimized for queries ratherthan atomic transactionsthis is the data warehouse. Data from all the source...
... Spatial Datatypes 51 ■ Chapter 4: Creating Spatial Data 77 ■ Chapter 5: Importing Spatial Data 101 ■ Chapter 6: Geocoding 139 ■ Chapter 7: Precision, Validity, and Errors 163 ■ Chapter 8: Transformation ... A Point is defined by a pair of coordinate values, either an x-coordinate value and a y-coordinate value from a planar coordinate system, or a latitude and longitude coordinate value from a ... Reference Systems Spatial data analysis is a complex subject area, taking elements from a range of academic disciplines, including geophysics, mathematics, astronomy, and cartography. Although you...
... settings.Defensive Data Modification Data modification is, in general, an area in which I see developers getting into trouble time and again. We'll start witha case that demonstrates how data can be ... changes to the database environment, such as a change in the database language setting, or a change to the nullability of a table column, and so on.In the short-term, this approach is attractive; ... @FirstName VARCHAR(50) , @LastName VARCHAR(50) , @ManagerID INTAS SET NOCOUNT ON ; UPDATE dbo.Employee SET ManagerID = @ManagerID WHERE FirstName = @FirstName AND LastName = @LastName ;Listing...