.NET批量大数据插入性能分析及比较

2019-11-14 16:03:58

字体：大中小

来源：转载

供稿：网友

数据插入使用了以下几种方式

1. 逐条数据插入
2. 拼接sql语句批量插入
3. 拼接sql语句并使用Transaction
4. 拼接sql语句并使用SqlTransaction
5. 使用DataAdapter
6. 使用TransactionScope及SqlBulkCopy
7. 使用表值参数

数据库使用SQL Server，脚本如下

create table TestTable
(
Id int
,Name nvarchar(20)
)

程序中生成测试DataTable结构和测试数据的类如下

[c-sharp] view plaincopyPRint?
1.public class Tools
2.{
3.    public static DataTable MakeDataTable()
4.    {
5.        DataTable table = new DataTable();
6.
7.        //生成DataTable的模式(schema)
8.        table.Columns.Add("Id", Type.GetType("System.Int32"));
9.        table.Columns.Add("Name", Type.GetType("System.String"));
10.
11.        //设置主键
12.        table.PrimaryKey = new DataColumn[] { table.Columns["ID"] };
13.        table.Columns["Id"].AutoIncrement = true;
14.        table.Columns["Id"].AutoIncrementSeed = 1;
15.        table.Columns["Id"].ReadOnly = true;
16.        return table;
17.    }
18.
19.    public static void MakeData(DataTable table, int count)
20.    {
21.        if (table == null)
22.            return;
23.
24.        if (count <= 0)
25.            return;
26.
27.        DataRow row = null;
28.
29.        for (int i = 1; i <= count; i++)
30.        {
31.            //创建一个新的DataRow对象(生成一个新行)
32.            row = table.NewRow();
33.            row["Name"] = "Test" + i.ToString();
34.            //添加新的DataRow
35.            table.Rows.Add(row);
36.        }
37.    }
38.}
    public class Tools
    {
        public static DataTable MakeDataTable()
        {
            DataTable table = new DataTable();

            //生成DataTable的模式(schema)
            table.Columns.Add("Id", Type.GetType("System.Int32"));
            table.Columns.Add("Name", Type.GetType("System.String"));

            //设置主键
            table.PrimaryKey = new DataColumn[] { table.Columns["ID"] };
            table.Columns["Id"].AutoIncrement = true;
            table.Columns["Id"].AutoIncrementSeed = 1;
            table.Columns["Id"].ReadOnly = true;
            return table;
        }

        public static void MakeData(DataTable table, int count)
        {
            if (table == null)
                return;

if (count <= 0)
return;

DataRow row = null;

            for (int i = 1; i <= count; i++)
            {
                //创建一个新的DataRow对象(生成一个新行)
                row = table.NewRow();
                row["Name"] = "Test" + i.ToString();
                //添加新的DataRow
                table.Rows.Add(row);
            }
        }
    }

使用Log4net记录日志，默认插入记录数为40000条，每次插入1条，可在界面修改，使用System.Diagnostics.StopWatch记录插入时间，每次测试后删除原表重建

窗体代码如下：

[c-sharp] www.nuoya118.com

public delegate bool InsertHandler(DataTable table, int batchSize);
public partial class FrmBatch : Form
{
private Stopwatch _watch = new Stopwatch();
public FrmBatch()
{
InitializeComponent();
}
private void FrmBatch_Load(object sender, EventArgs e)
{
txtRecordCount.Text = "40000";
txtBatchSize.Text = "1";
}
//逐条数据插入
private void btnInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteInsert, "Use SqlServer Insert");
}
//拼接sql语句插入
private void btnBatchInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteBatchInsert, "Use SqlServer Batch Insert");
}
//拼接sql语句并使用Transaction
private void btnTransactionInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteTransactionInsert, "Use SqlServer Batch Transaction Insert");
}
//拼接sql语句并使用SqlTransaction
private void btnSqlTransactionInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteSqlTransactionInsert, "Use SqlServer Batch SqlTransaction Insert");
}
//使用DataAdapter
private void btnDataAdapterInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteDataAdapterInsert, "Use SqlServer DataAdapter Insert");
}
//使用TransactionScope
private void btnTransactionScopeInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteTransactionScopeInsert, "Use SqlServer TransactionScope Insert");
}
//使用表值参数
private void btnTableTypeInsert_Click(object sender, EventArgs e)
{
Insert(DbOperation.ExecuteTableTypeInsert, "Use SqlServer TableType Insert");
}
private DataTable InitDataTable()
{
DataTable table = Tools.MakeDataTable();
int count = 0;
if (int.TryParse(txtRecordCount.Text.Trim(), out count))
{
Tools.MakeData(table, count);
//MessageBox.Show("Data Init OK");
}
return table;
}
public void Insert(InsertHandler handler, string msg)
{
DataTable table = InitDataTable();
if (table == null)
{
MessageBox.Show("DataTable is null");
return;
}
int recordCount = table.Rows.Count;
if (recordCount <= 0)
{
MessageBox.Show("No Data");
return;
}
int batchSize = 0;
int.TryParse(txtBatchSize.Text.Trim(), out batchSize);
if (batchSize <= 0)
{
MessageBox.Show("batchSize <= 0");
return;
}
bool result = false;
_watch.Reset(); _watch.Start();
result = handler(table, batchSize);
_watch.Stop(www.nuoya66.com);
string log = string.Format("{0};RecordCount:{1};BatchSize:{2};Time:{3};", msg, recordCount, batchSize, _watch.ElapsedMilliseconds);
LogHelper.Info(log);
MessageBox.Show(result.ToString());
}
}