How to separate csv data by comma and import data in SQL using ASP.NET bulk insert

Question

1.00/5 (2 votes)

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For "Name"(Line No 20)

In My Excel Sheet Data is Akshada,Shivani,Malvika,Rutu


But I want to store in data table like this

id     Name
1     Akshada
2     Shivani
3     Malvika
4     Rutu


// below code stores all same to same data from excel to database
sqlBulkCopy.ColumnMappings.Add("Name", "Name");
// I want to separate data for second row's Second column
// hear(Line No 23) I get all excel sheet data in dtExcelData
con.Open();
            sqlBulkCopy.WriteToServer(dtExcelData);
con.Close();

What I have tried:

1 conString = string.Format(conString, excelPath);
2    using (OleDbConnection excel_con = new OleDbConnection(conString))
3    {
4        excel_con.Open();
5        string sheet1 = excel_con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null).Rows[0]["TABLE_NAME"].ToString();
6        DataTable dtExcelData = new DataTable();
 
        //[OPTIONAL]: It is recommended as otherwise the data will be considered as String by default.
7        dtExcelData.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)),
8                new DataColumn("Name", typeof(string)),
9                new DataColumn("Salary",typeof(decimal)) });
 
10        using (OleDbDataAdapter oda = new OleDbDataAdapter("SELECT * FROM [" + sheet1 + "]", excel_con))
11        {
12            oda.Fill(dtExcelData);
13       }
14       excel_con.Close();
 
15       string consString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
16       using (SqlConnection con = new SqlConnection(consString))
        {
17           using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(con))
            {
                //Set the database table name
18                sqlBulkCopy.DestinationTableName = "dbo.tblPersons";
 
                //[OPTIONAL]: Map the Excel columns with that of the database table
19                sqlBulkCopy.ColumnMappings.Add("Id", "PersonId");
20                sqlBulkCopy.ColumnMappings.Add("Name", "Name");
21                sqlBulkCopy.ColumnMappings.Add("Salary", "Salary");
22               con.Open();
23              sqlBulkCopy.WriteToServer(dtExcelData);
24             con.Close();
            }
        }
    }

Posted 5-Dec-17 18:59pm

Akshada Sane

Updated 7-Dec-17 19:33pm

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Comments

CHill60 6-Dec-17 9:20am

What is wrong with the code you have copied?
Try saving your excel data to CSV format with no quotes on text fields and see if that will load.
You could load the data to a staging table and use a Split[^] function to process it further.

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Anuj Mehta · Accepted Answer · 2017-12-07T19:33:00

conString = string.Format(conString, excelPath);
        using (OleDbConnection excel_con = new OleDbConnection(conString))
        {
            excel_con.Open();
            string sheet1 = excel_con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null).Rows[0]["TABLE_NAME"].ToString();
            DataTable dtExcelData = new DataTable();
            //[OPTIONAL]: It is recommended as otherwise the data will be considered as String by default.
            dtExcelData.Columns.AddRange(new DataColumn[2]              
            {                
                new DataColumn("Id", typeof(int)),
                             new DataColumn("Name", typeof(string))   });
 
            using (OleDbDataAdapter oda = new OleDbDataAdapter("SELECT * FROM [" + sheet1 + "]", excel_con))
            {
                oda.Fill(dtExcelData);
            }
            excel_con.Close();
            string consString = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
            using (SqlConnection con = new SqlConnection(consString))
            {
                using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(con))
                {
                    if (dtExcelData.Rows.Count > 0)
                    {
                        foreach (DataRow dRow in dtExcelData.Rows)
                        {
                            
                            objContactBO.id = dRow["id"].ToString();                            
                            objContactBO.Name = dRow["Name"].ToString();
                            
						
							
							// saperate data value
                            string strValue = objContactBO.Name;
                            string[] strArray = strValue.Split(',');
							// insert data in new column
                            foreach (String Name in strArray)
                            {
                                objContactBO.Name = dt.Rows[0]["Name"].ToString();
								//insert for second Name in different column on same id
                                result2 = objContactBL.Insert_ContactInDiffColumName(objContactBO);
                            }
                        }
                    }
                }
            }
        }