SQLBulkCopy 性能统计

下面的C#代码可以利用SqlBulkCopy实现大数据量的上传：

    public void SaveDataTable(string connectionString, String tableName, int batchSize, DataTable table)
    {
        using (SqlConnection sqlConnection = new SqlConnection(connectionString))
        {
            sqlConnection.Open();
            var sqlTransaction = sqlConnection.BeginTransaction();
            try
            {
                //通过SqlBulkCopyOptions和ExternalTrasaction这两个参数我们可以对事务有很好的控制选择。
                using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(sqlConnection, SqlBulkCopyOptions.TableLock, sqlTransaction))
                {
                    sqlBulkCopy.BatchSize = batchSize;
                    sqlBulkCopy.BulkCopyTimeout = 900;
                    sqlBulkCopy.DestinationTableName = tableName;
                    sqlBulkCopy.WriteToServer(table);
                    sqlTransaction.Commit();
                }
            }
            catch (Exception)
            {
                sqlTransaction.Rollback();
                throw;
            }
        }
    }

以下为此方法在实际使用中的统计数据（单位为毫秒）：

每次10000条数据:

bulkcopy:4718.6594

bulkcopy:1921.8381

bulkcopy:2437.4532

bulkcopy:1906.2134

bulkcopy:2640.5743

bulkcopy:2578.0755

bulkcopy:2734.3225

bulkcopy:2406.2038

bulkcopy:2671.8237

bulkcopy:2578.0755

bulkcopy:2531.2014

bulkcopy:2046.8357

bulkcopy:2078.0851

bulkcopy:2421.8285

bulkcopy:2593.7002

bulkcopy:2656.199

bulkcopy:2640.5743

bulkcopy:2421.8285

bulkcopy:2578.0755

bulkcopy:2593.7002

bulkcopy:2890.5695

每次50000条数据:

bulkcopy:22030.827

bulkcopy:6640.4975

bulkcopy:7156.1126

bulkcopy:8171.7181

bulkcopy:7109.2385

bulkcopy:6718.621

bulkcopy:6734.2457

bulkcopy:6187.3812

bulkcopy:6734.2457

bulkcopy:6937.3668

bulkcopy:6796.7445

bulkcopy:6812.3692

bulkcopy:10327.9267

bulkcopy:7859.2241

bulkcopy:7624.8536

bulkcopy:7390.4831

每次100000条数据:

bulkcopy:6296.7541

bulkcopy:6843.6186

bulkcopy:32311.8796

bulkcopy:8062.3452

bulkcopy:7702.9771

bulkcopy:7577.9795

bulkcopy:8109.2193

bulkcopy:8577.9603

bulkcopy:7734.2265

bulkcopy:7499.856

bulkcopy:7593.6042

bulkcopy:7656.103

bulkcopy:7765.4759

每次200000条数据:

bulkcopy:16138.3021

bulkcopy:13833.7382

bulkcopy:14786.1739

bulkcopy:17549.7988

bulkcopy:15629.3137

bulkcopy:7135.4609

bulkcopy:7307.2116

bulkcopy:9368.22

bulkcopy:8931.0364

bulkcopy:10008.3817

bulkcopy:8571.9213

bulkcopy:9055.946

bulkcopy:37832.6585

每次500000条数据:

bulkcopy:31163.097

bulkcopy:26992.3968

bulkcopy:26211.3668