implementing a data warehouse with sql server

Ngày tải lên: 06/03/2014, 23:20

Ngày tải lên: 29/03/2014, 02:20

... [ Team LiB ] Recipe 9.5 Performing a Bulk Insert with SQL Server Problem Given many records in an XML file that you need to add to a SQL Server 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...

Ngày tải lên: 20/10/2013, 12:15

... 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 SQL Server ... [ Team LiB ] Recipe 1.7 Connecting to a Named Instance of SQL Server or Microsoft Data Engine (MSDE) Problem You want to connect to a named instance of a SQL Server or Microsoft Data Engine ... understand what a SQL Server 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...

Ngày tải lên: 14/12/2013, 18:16

... shown 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. • 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 with a 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...

Ngày tải lên: 14/12/2013, 18:16

Ngày tải lên: 31/03/2014, 21:22

Ngày tải lên: 11/09/2012, 15:49

... the DataSet and the data source. The DataAdapter is responsible for retrieving the data from the Command object and populating the DataSet with the data returned. The DataAdapter is also ... later became 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 any applicable parameters. ❑ DataReader — The DataReader object provides fast, forward-only reading capability to quickly loop through the records. ❑ DataSet — The DataSet object, along...

Ngày tải lên: 12/12/2013, 21:16

... 88 Manually Populating a DataSet 89 Using DataAdapters 89 Using DataReaders 90 DataTable 90 RowState 91 DataView 91 Serialization 92 DataTableReader 93 Streaming 93 Namespace Qualified Tables 94 Indexing ... Engine 94 DataSet, DataTable, DataReader, or an Object? 95 Showing Data to Users without Any Manipulation 95 Editing Data That Lives in One Table 95 Editing 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 APIs available...

Ngày tải lên: 12/12/2013, 21:16

... Discussion SQL Server 2000 introduced support for retrieving data in XML format using the FOR XML clause. The .NET SQL Server data provider SqlCommand object has an ExecuteXmlReader( ) that allows ... return XML data, such as those with a 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 with SQL statements that...

Ngày tải lên: 24/12/2013, 05:15

... Team LiB ] Recipe 4.7 Updating a Data Source with Data from a Different Data Source Problem You want to update a data 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 a data 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....

Ngày tải lên: 21/01/2014, 11:20

... string is passed to a DataAdapter control, filling a data 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 a data 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...

Ngày tải lên: 26/01/2014, 11:20

Ngày tải lên: 27/01/2014, 09:20

Ngày tải lên: 27/01/2014, 09:20

... information. What Is the Difference Between a Data Warehouse and a Data Mart? The difference between the terms data warehouse and data mart is largely a matter of perspective. A data mart was classically ... balances such as inventory on hand or account balances. Getting Data into the Data Warehouse Because the data warehouse is separate from all the other systems, an important part of the data warehouse ... create a separate relational database with a design and an operational approach that is optimized for queries rather than atomic transactionsthis is the data warehouse. Data from all the source...

Ngày tải lên: 13/02/2014, 16:20

Ngày tải lên: 16/02/2014, 13:20

Ngày tải lên: 22/02/2014, 05:20

Ngày tải lên: 14/03/2014, 19:20

Ngày tải lên: 31/03/2014, 10:21

Ngày tải lên: 25/05/2014, 13:59