Importing a CSV file using BULK INSERT command into SQL Server table

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野性不改 2021-01-21 18:34

I have CSV file which have a couple of data columns.

The CSV file looks like

field1: Test1
field2: Test2
field3: Test3, Test4, Test5

4条回答
  •  礼貌的吻别
    2021-01-21 18:42

    using System;
    using System.Data;
    using System.Data.SqlClient;
    
    namespace SqlBulkInsertExample
    {
        class Program
        {
          static void Main(string[] args)
            {
                DataTable prodSalesData = new DataTable("ProductSalesData");
    
                // Create Column 1: SaleDate
                DataColumn dateColumn = new DataColumn();
                dateColumn.DataType = Type.GetType("System.DateTime");
                dateColumn.ColumnName = "SaleDate";
    
                // Create Column 2: ProductName
                DataColumn productNameColumn = new DataColumn();
                productNameColumn.ColumnName = "ProductName";
    
                // Create Column 3: TotalSales
                DataColumn totalSalesColumn = new DataColumn();
                totalSalesColumn.DataType = Type.GetType("System.Int32");
                totalSalesColumn.ColumnName = "TotalSales";
    
                // Add the columns to the ProductSalesData DataTable
                prodSalesData.Columns.Add(dateColumn);
                prodSalesData.Columns.Add(productNameColumn);
                prodSalesData.Columns.Add(totalSalesColumn);
    
                // Let's populate the datatable with our stats.
                // You can add as many rows as you want here!
    
                // Create a new row
                DataRow dailyProductSalesRow = prodSalesData.NewRow();
                dailyProductSalesRow["SaleDate"] = DateTime.Now.Date;
                dailyProductSalesRow["ProductName"] = "Nike";
                dailyProductSalesRow["TotalSales"] = 10;
    
                // Add the row to the ProductSalesData DataTable
                prodSalesData.Rows.Add(dailyProductSalesRow);
    
                // Copy the DataTable to SQL Server using SqlBulkCopy
                using (SqlConnection dbConnection = new SqlConnection("Data Source=ProductHost;Initial Catalog=dbProduct;Integrated Security=SSPI;Connection Timeout=60;Min Pool Size=2;Max Pool Size=20;"))
                {
                    dbConnection.Open();
                    using (SqlBulkCopy s = new SqlBulkCopy(dbConnection))
                    {
                        s.DestinationTableName = prodSalesData.TableName;
    
                        foreach (var column in prodSalesData.Columns)
                            s.ColumnMappings.Add(column.ToString(), column.ToString());
    
                        s.WriteToServer(prodSalesData);
                    }
                }
            }
        }
    }
    

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