一次性插入上万条数据的写法

1.

/// <summary> 



/// DataTable批量添加(有事务) 



/// </summary> /



// <param name="Table">数据源</param>



 /// <param name="Mapping">定义数据源和目标源列的关系集合</param> 



/// <param name="DestinationTableName">目标表</param> 



public static bool MySqlBulkCopy(DataTable Table, SqlBulkCopyColumnMapping[] Mapping, string DestinationTableName) { 



bool Bool = true; 



using (SqlConnection con = new SqlConnection(ConnectionString)) { 



con.Open(); 



using (SqlTransaction Tran = con.BeginTransaction()) {



 using (SqlBulkCopy Copy = new SqlBulkCopy(con,SqlBulkCopyOptions.KeepIdentity,Tran)) { 



Copy.DestinationTableName = DestinationTableName;//指定目标表 



if (Mapping != null) { //如果有数据 



foreach (SqlBulkCopyColumnMapping Map in Mapping) { 



Copy.ColumnMappings.Add(Map); } } 



try { Copy.WriteToServer(Table);//批量添加 



Tran.Commit();//提交事务 } 



catch { Tran.Rollback();



//回滚事务 Bool = false; } } } }



 return Bool; }

2.

MSSQL使用SqlBulkCopy,传数据源，表名，列影射，我导入150万几秒完成

/// <summary>

  /// 使用SqlBulkCopy批量插入，只限SQLServer

  /// 缺点，没有返回行数

  /// </summary>

  /// <param name="table">填充的DataTable,支持其它数据源，请看重载</param>

  /// <param name="tableName">数据库对应表名</param>

  /// <param name="columns">插入表对应的列名集合</param>

  public void SqlBulkCopyInsert(DataTable table, string tableName, string[] columns)

  {

  SqlBulkCopy sbc = new SqlBulkCopy("接连字符串");

  sbc.DestinationTableName = tableName;

  foreach (string col in columns)

  {

  sbc.ColumnMappings.Add(col, col);

  }

  sbc.WriteToServer(table);

  }

3.

其它数据库，将数据查到一个datatable,往table填充数据,再在adpt.Update(table)

/// <summary>

  /// 多行插入,Connection/Command/DataAdapter看你连接的数据库类型

  /// 进行相应的替换即可

  /// </summary>

  /// <param name="ds">填充数据后的数据集</param>

  /// <returns>受影响行数</returns>

  public int MultyInsert(DataSet ds)

  {

  int result = 0;

  IDbConnection con = new OracleConnection("连接字符串");

  con.Open();

  IDbCommand cmd = new OracleCommand();

  cmd.CommandText = "Insert into Member(UserName,Password) values(@name,@password)";

  IDbDataParameter namePar = cmd.CreateParameter();

  namePar.ParameterName = "@name";

  namePar.SourceColumn = "UserName";

  namePar.SourceVersion = DataRowVersion.Original;

  namePar.DbType = DbType.String;

  cmd.Parameters.Add(namePar);

  IDbDataParameter passPar = cmd.CreateParameter();

  passPar.ParameterName = "@pass";

  passPar.DbType = DbType.String;

  passPar.SourceColumn = "Password";

  passPar.SourceVersion = DataRowVersion.Original;

  cmd.Parameters.Add(passPar);

  IDbDataAdapter adpt = new OracleDataAdapter();

  adpt.InsertCommand = cmd;

  try

  {

  result = adpt.Update(ds);

  }

  catch (Exception)

  {



  throw;

  }

  finally

  {

  con.Close();

  }

  return result;

  }

 

Thanks