Skip to main content

SQL Bulk Copy with C#.Net

Bulk copying of data from one data source to another data source is a new feature added to ADO.NET 2.0. Bulk copy classes provides the fastest way to transfer set of data from once source to the other.
Each ADO.NET data provider provides bulk copy classes. For example, in SQL .NET data provider, the bulk copy operation is handled by SqlBulkCopy class, which is described in Figure 1. As you can see from Figure 1, data from a data source can be copied to one of the four types - DataReader, DataSet, DataTable, or XML.




Figure 1. Bulk Copy operation in ADO.NET 2.0

Using bulk copy operation, you can transfer data between two tables on the same SQL Server, between two different SQL Servers, or even two different types of database servers.





using System.Data.SqlClient;

public static void CopyData(DataTable sourceTable, SqlConnection destConnection, SqlTransaction destTrans, string destTableName)
  {
          // new method: SQLBulkCopy:
          using (SqlBulkCopy s = new SqlBulkCopy(destConnection, SqlBulkCopyOptions.Default, destTrans))
            {
                s.DestinationTableName = destTableName;
                s.NotifyAfter = 40000;
                //s.SqlRowsCopied += new SqlRowsCopiedEventHandler(s_SqlRowsCopied);
                s.WriteToServer(sourceTable);
                s.Close();
            }
  }




Calling the above function

         SqlConnection destinationConnection= new SqlConnection(sourceConnectionString);
        
         destinationConnection.Open();
         destinationTransaction =              destinationConnection.BeginTransaction(IsolationLevel.ReadUncommitted);


         DataTable SourceDataTable= new  DataTable();

         CopyData(SourceDataTable, destinationConnection, destinationTransaction, "DestinationTableName");

         destinationTransaction.Commit();

         destinationConnection.Close();

Comments

Popular posts from this blog

Call User-defined Function on Linked Server :SQL Server

If you try to invoke a user-defined function (UDF) through a linked server in SQL Server by using a "four-part naming" convention (server.database.dbo.Function), you may receive error message. 
The reason is User-defined function calls inside a four-part linked server query are not supported in SQL Server. Thats why error message indicates that the syntax of a Transact-SQL statement is incorrect. 
To work around this problem, use the Openquery function instead of the four-part naming convention. For example, instead of the following query
Select * from Linked_Server.database.dbo.Function(10)
run a query with the Openquery function:
Select * from Openquery(Linked_Server,'select database.dbo.Function(10)') If the user-defined function takes variable or scalar parameters, you can use the sp_executesql stored procedure to avoid this behavior.  For example:
exec Linked_Server.database.dbo.sp_executesql N'SELECT database.dbo.Function(@input)',N'@input int',@inp…

Microsoft SQL Server 2005 Service Pack 3 for Windows 7 (64 bit)

You can download from here

Microsoft SQL Server 2005 Service Pack 3
OverviewService Pack 3 for Microsoft SQL Server 2005 is now available. SQL Server 2005 service packs are cumulative, and this service pack upgrades all service levels of SQL Server 2005 to SP3. You can use these packages to upgrade any of the following SQL Server 2005 editions:
Enterprise Enterprise Evaluation Developer Standard Workgroup

Download Size:
326.0 MB
http://www.microsoft.com/downloads/details.aspx?FamilyID=ae7387c3-348c-4faa-8ae5-949fdfbe59c4&displaylang=en


Microsoft SQL Server Management Studio Express Service Pack 3
OverviewMicrosoft SQL Server Management Studio Express (SSMSE) is a free, easy-to-use graphical management tool for managing SQL Server 2005 Express Edition and SQL Server 2005 Express Edition with Advanced Services. SSMSE can also manage instances of the SQL Server Database Engine created by any edition of SQL Server 2005.

Note: SSMSE cannot manage SQL Server Analysis Services, In…

Max Length not working for Multi Line Text Box : Solution

In almost all the web projects, we require a multiline TextBox control. It was annoying to find that maxLength property doesn't work on multiline textboxes. There is a workaround to accomplish this using RegularExpressionValidator. Following is the markup that will restrict the text box to maximum of 500 characters.







OR You it can be done so easily using javascript functions.



I suggest that we should put a javascript validator function so that user will not be able to enter characters more than the length specified, even cant paste any text with more than specified characters. Here are those javascript functions.



TextBox Control




Javascript:



// Keep user from entering more than maxLength characters function doKeypress(control){ maxLength = control.attributes["maxLength"].value; value = control.value; if(maxLength && value.length > maxLength-1){ event.returnValue = false; maxLength = parseInt(maxLength); } }



// Cancel default…