感兴趣的小伙伴，下面一起跟随编程之家 jb51.cc的小编两巴掌来看看吧！

代码如下:

 
using System.Data; 
using System.Diagnostics; 
using System.Data.sqlClient; 
　　　 
string connectionString = "Data Source=HG-J3EJJ9LSW5PY;Initial Catalog=Test;User ID=sa;password=hg"; 
DataTable dataTable = sql_.select_datagrid(" select a from large where 1=0 ").Tables[0]; 
string passportKey; 
for (int i = 0; i < 100000; i++) 
{ 
passportKey = Guid.NewGuid().ToString(); 
DataRow dataRow = dataTable.NewRow(); 
dataRow[0] = passportKey; 
dataTable.Rows.Add(dataRow); 
} 
sqlConnection sqlConnection = new sqlConnection(connectionString); 
sqlConnection.Open(); 
sqlTransaction sqltran = sqlConnection.BeginTransaction(); 
sqlBulkCopy sqlBulkCopy = new sqlBulkCopy(sqlConnection,sqlBulkCopyOptions.KeepIdentity,sqltran); 
sqlBulkCopy.DestinationTableName = "large"; 
sqlBulkCopy.BatchSize = dataTable.Rows.Count; 
if (dataTable != null && dataTable.Rows.Count != 0) 
{ 
sqlBulkCopy.WriteToServer(dataTable); 
} 
sqlBulkCopy.Close(); 
sqltran.Rollback(); 
sqlConnection.Close();