Monday, February 2, 2009

How to import MS Excel data to SQL Server table using

If you already have data in MS Excel file, and want to migrate your MS Excel data to SQL Server table, follow below steps

1. Lets take an example to import the data to SQL Server table, I am going to import student information data from ms excel sheet to tStudent SQL table,

My Excel sheet structure is looks like

2. Now design a tStudent table in SQL server
Create Table
StudentName varchar(64),
RollNo varchar(16),
Course varchar(32),

your ms excel sheet and SQL table is ready, now its time to write c# code to import the excel sheet into tStudent table

Add these two name space in your class file

using System.Data.OleDb;

using System.Data.SqlClient;

Use following code

public void importDataFromExcel(string excelFilePath)


//Declare Variables - Edit these based on your particular situation

string sSQLTable = "tDataMigrationTable";

// make sure your sheet name is correct, here sheet name is Sheet1, so you can change your sheet name if have different

string myExcelDataQuery = "Select StudentName,RollNo,Course from [Sheet1$]";



//Create our connection strings

string sExcelConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + excelFilePath + ";Extended Properties=" + "\"Excel 8.0;HDR=YES;\"";

string sSqlConnectionString = "SERVER=MyDatabaseServerName;USER ID=DBUserId;PASSWORD=DBUserPassword;DATABASE=DatabaseName;CONNECTION RESET=FALSE";

//Execute a query to erase any previous data from our destination table

string sClearSQL = "DELETE FROM " + sSQLTable;

SqlConnection SqlConn = new SqlConnection(sSqlConnectionString);

SqlCommand SqlCmd = new SqlCommand(sClearSQL, SqlConn);




//Series of commands to bulk copy data from the excel file into our SQL table

OleDbConnection OleDbConn = new OleDbConnection(sExcelConnectionString);

OleDbCommand OleDbCmd = new OleDbCommand(myExcelDataQuery, OleDbConn);


OleDbDataReader dr = OleDbCmd.ExecuteReader();

SqlBulkCopy bulkCopy = new SqlBulkCopy(sSqlConnectionString);

bulkCopy.DestinationTableName = sSQLTable;

while (dr.Read())






catch (Exception ex)


//handle exception



In above function you have to pass ms excel file path as a parameter, if you want to import your data by providing client an access to select the excel file and import, then you might have to use file control, and upload the excel file on the server in some temp folder, then use the file path of the upload excel file and pass the path in above function. Once data import is completed then you can delete temporary file.

The above method , first delete the existing data from the destination table, then import the excel data into the same table.


  1. Sir,

    Iam using File Upload control in,c#.Iam able to upload in my local system but not able to upload over VSS(webserver).Please help me in doing this work.

    Thanks and Regards
    ramarao kurapati

  2. Hey!.. you have to make sure you are providing correct path of the directory where you are uploading the file.

    You upload Path should be.

    Please shere your code here, so that i can help you.

  3. I'm using your codes above. It works well except the first record in Excel is missing after the import is done. Do you know why? I look forward to your answer. Thank you.

  4. Hi, I have found the solution. The first row below the header row in excel should be blank. Good codes, great Job!

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  9. what if there will different files names, but the data in them has the same fields. I am working on something where there are excel sheet coming in from the client, we need to upload them and extract there data and validate it.

  10. Hi Shaikh,
    I tried your code to upload an excel file to SQL Server. It worked but the first record of the excel file was not there in the SQL Server table. I used a DO...WHHILE loop instead and then all the rows of the excel file were copied to the SQL Server including the firt record.

  11. Hi Shaikh,
    I tried your code using excel data into sql server 2005 table but it conection string problem.
    Plz solve me.


    1. Hi,
      I hope you are setting proper connection string here
      string sSqlConnectionString = "SERVER=MyDatabaseServerName;USER ID=DBUserId;PASSWORD=DBUserPassword;DATABASE=DatabaseName;CONNECTION RESET=FALSE";

      You need to check whether your sql server allows sql authentication, if so you should first try connecting to sql server from ssms manually just to verify the credential you are providing are correct.

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