Monday, July 27, 2015

SqlBulkCopy: Insert bulk data to SQL Server database (more than 10 million records)

To insert 10 Million Records. Following is the code to insert bulk data in to SQL Server Database in .net.
using System;
using System.Data;
using System.Data.SqlClient;

namespace BulkCopyInsert
{
    class BlukCopy
    {
        static string DestinationDbConnection = "Data Source=192.168.0.5;Initial Catalog=DatabaseName;Persist Security Info=True;User ID=sa;Password=Password@123";

        static void Main(string[] args)
        {
            DataTable dt = GetDataTable();
            DataRow dr;
            DateTime dtm = DateTime.Now;
            //start dummy data creation
            for (long i = 0; i < 5000000; i++)
            {
                dr = dt.NewRow();

                dr["Name"] = "nitin dhiman";
                dr["Age"] = i;
                dr["ManagerId"] = i;
                dr["CreateDate"] = dtm;

                dt.Rows.Add(dr);
            }
            //End dummy data created
            //Start Bulk Insert
            SqlBulkCopy objBulkCopy = new SqlBulkCopy(DestinationDbConnection);
            objBulkCopy.DestinationTableName = "UserTable";//Table Name, must match with sql table
            objBulkCopy.BatchSize = 10000;
            objBulkCopy.BulkCopyTimeout = 600; //Seconds
            foreach (DataColumn dc in dt.Columns)
            {
                objBulkCopy.ColumnMappings.Add(dc.ColumnName, dc.ColumnName);
            }

            objBulkCopy.WriteToServer(dt);
            //End Bulk Insert
        }

        static DataTable GetDataTable()
        {
            try
            {
                //Columns of table, name must match with sql table columns
                DataTable dt = new DataTable();
                dt.Columns.Add("Name", typeof(string));
                dt.Columns.Add("Department", typeof(string));
                dt.Columns.Add("Age", typeof(int));
                dt.Columns.Add("ManagerId", typeof(int));
                dt.Columns.Add("CreateDate", typeof(DateTime));

                return dt;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}


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