批量添加数据SqlBulkCopy

 

 1 using System.Data.SqlClient;
 2 
 3 class Program
 4 {
 5     static void Main()
 6     {
 7         string connectionString = GetConnectionString();
 8         // Open a sourceConnection to the AdventureWorks database.
 9         using (SqlConnection sourceConnection =
10                    new SqlConnection(connectionString))
11         {
12             sourceConnection.Open();
13 
14             // Perform an initial count on the destination table.
15             SqlCommand commandRowCount = new SqlCommand(
16                 "SELECT COUNT(*) FROM " +
17                 "dbo.BulkCopyDemoMatchingColumns;",
18                 sourceConnection);
19             long countStart = System.Convert.ToInt32(
20                 commandRowCount.ExecuteScalar());
21             Console.WriteLine("Starting row count = {0}", countStart);
22 
23             // Get data from the source table as a SqlDataReader.
24             SqlCommand commandSourceData = new SqlCommand(
25                 "SELECT ProductID, Name, " +
26                 "ProductNumber " +
27                 "FROM Production.Product;", sourceConnection);
28             SqlDataReader reader =
29                 commandSourceData.ExecuteReader();
30 
31             // Open the destination connection. In the real world you would 
32             // not use SqlBulkCopy to move data from one table to the other 
33             // in the same database. This is for demonstration purposes only.
34             using (SqlConnection destinationConnection =
35                        new SqlConnection(connectionString))
36             {
37                 destinationConnection.Open();
38 
39                 // Set up the bulk copy object. 
40                 // Note that the column positions in the source
41                 // data reader match the column positions in 
42                 // the destination table so there is no need to
43                 // map columns.
44                 using (SqlBulkCopy bulkCopy =
45                            new SqlBulkCopy(destinationConnection))
46                 {
47                     bulkCopy.DestinationTableName =
48                         "dbo.BulkCopyDemoMatchingColumns";
49 
50                     try
51                     {
52                         // Write from the source to the destination.
53                         bulkCopy.WriteToServer(reader);
54                     }
55                     catch (Exception ex)
56                     {
57                         Console.WriteLine(ex.Message);
58                     }
59                     finally
60                     {
61                         // Close the SqlDataReader. The SqlBulkCopy
62                         // object is automatically closed at the end
63                         // of the using block.
64                         reader.Close();
65                     }
66                 }
67 
68                 // Perform a final count on the destination 
69                 // table to see how many rows were added.
70                 long countEnd = System.Convert.ToInt32(
71                     commandRowCount.ExecuteScalar());
72                 Console.WriteLine("Ending row count = {0}", countEnd);
73                 Console.WriteLine("{0} rows were added.", countEnd - countStart);
74                 Console.WriteLine("Press Enter to finish.");
75                 Console.ReadLine();
76             }
77         }
78     }
79 
80     private static string GetConnectionString()
81         // To avoid storing the sourceConnection string in your code, 
82         // you can retrieve it from a configuration file. 
83     {
84         return "Data Source=(local); " +
85             " Integrated Security=true;" +
86             "Initial Catalog=AdventureWorks;";
87     }
88 }