如何将 table 索引复制到 ado.net 中的另一个 table

Question

我在 ado.net 中使用 SqlBulkCopy 将一个 table 复制到另一个。代码是：

    using (sourceConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["OTPTestConnectionString"].ConnectionString))
    {
        sourceConnection.Open();

        // Get data from the source table as a SqlDataReader.
        SqlCommand commandSourceData = new SqlCommand("SELECT * FROM " + sourceTableName, sourceConnection);
        SqlDataReader reader = commandSourceData.ExecuteReader();

        using (destConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["SQLExpressDatabaseConnectionString"].ConnectionString))
        {
            destConnection.Open();

            // Perform bulk copy
            using (SqlBulkCopy bulkCopy = new SqlBulkCopy(destConnection))
            {
                bulkCopy.DestinationTableName = destTableName;

                // Write from the source to the destination.
                bulkCopy.WriteToServer(reader);
            }
        }
        reader.Close();
...

工作正常，但无法将原始 table 中的主键索引复制到新的 table。我想知道如何在 Ado.net 中做到这一点。谢谢

Answer 1

我用 SqlBulkCopyOptions.KeepIdentity 弄明白了。代码是

        SqlBulkCopyOptions options = SqlBulkCopyOptions.KeepIdentity;
        using (SqlBulkCopy bulkCopy = new SqlBulkCopy(destConnection.ConnectionString, options))
        {
            bulkCopy.DestinationTableName = destTableName;
                // Write from the source to the destination.
            bulkCopy.WriteToServer(reader);
        }

如何将 table 索引复制到 ado.net 中的另一个 table

How to copy table index to another table in ado.net

c#

sql-server

ado.net