How to Load Excel Files with Single/ Multiple Sheets to SQL Server Tables according to Excel File Name Dynamically - SSIS Tutorial

Scenario: Download Script

We receive single or multiple files in our source folder daily. These Excel Files can have single or multiple Sheets. We need to load these Excel files to SQL Server Tables. The Excel File Name contains table name. Here are few sample files I created. I tried my best to create files names keeping in mind that you might get file names in different formats. 

Most common file formats are FileName_DateTime.xlsx or maybe you always get FileName_FileNumber etc.

How to load Excel Files according to the name to SQL Server Table in SSIS Package Dynamically

Pay attention so file names. I am very much sure you will get your files from one of above format. I extracted the name from file. My table name is exactly like that. I have Customer and Product Tables.

The Excel files can have single or multiple sheets as long as the columns match with table columns, we are good to load them.

I opened couple of files and you can see it has multiple sheets.

How to load Excel file dynamically to SQL server Table by using File Name as Table Name in SSIS Package by using Script Task


Solution:

We are going to use Script Task in SSIS Package to handle this scenario for loading excel data from excel files to SQL Server depending upon the Excel File Name.

Let's create Product and Customer tables after talking a look into our Excel Sheets on each excel file.

CREATE TABLE dbo.Customer (
    id INT
    ,name VARCHAR(100)
    ,dob DATE
    )
GO

CREATE TABLE dbo.Product (
    ProductId INT
    ,ProductName VARCHAR(100)
    )

I created the tables with dbo schema. You can change with different schema if you need to. Our SSIS Package is going to have a variable SchemaName so we can provide schema name for our tables.



Step 1: Create Variable in SSIS to Make your SSIS Package Dynamic
Create below variables in your SSIS Package
FolderPath: In this variable you will save the path from where you would like to read Excel Files
SchemaName: Schema of your Destination Table/s

Create Variables in SSIS Package To load Excel Data to SQL server Table/s  depending upon Excel file name


Step 2: Create ADO.NET Connection in SSIS Package to use in Script Task
Create ADO.NET Connection Manager so we can use in Script Task to Load data from Excel Sheets to SQL Server Table.

Create ADO.NET Connection in SSIS Package to use in Script Task to Load Excel File Data according to the name to SQL Server Tables Dynamically


Step3: Add Variables to Script Task to use from SSIS Package
Bring the Script Task on Control Flow Pane in SSIS Package and open by double clicking Check-box in front of variable to add to Script Task.

Use Variables in Script Task in SSIS Package to Load Excel File data Dynamically to SQL Server Tables


Step 4: Add Script to Script task Editor in SSIS To load Excel Data with File Name and Sheet Name
Click Edit Button and it will open Script Task Editor.
Under #region Namespaces, I have added below code
using System.IO;
using System.Data.OleDb;
using System.Data.SqlClient;


Under public void Main() { 
I have added below code. 

            String FolderPath=Dts.Variables["User::FolderPath"].Value.ToString();
            String TableName = "";
            String SchemaName = Dts.Variables["User::SchemaName"].Value.ToString();
            var directory = new DirectoryInfo(FolderPath);
            FileInfo[] files = directory.GetFiles();
            
            //Declare and initilize variables
            string fileFullPath = "";
            
            //Get one Book(Excel file at a time)
            foreach (FileInfo file in files)
            {
                   fileFullPath = FolderPath+"\\"+file.Name;
                                   
                //Create Excel Connection
                string ConStr;
                string HDR;
                HDR="YES";
                ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileFullPath + ";Extended Properties=\"Excel 12.0;HDR=" + HDR + ";IMEX=0\"";
                    OleDbConnection cnn = new OleDbConnection(ConStr);
            
                //Remove All Numbers and other characters and leave alphabets for name
                    System.Text.RegularExpressions.Regex rgx = new System.Text.RegularExpressions.Regex("[^a-zA-Z]");
                    TableName = rgx.Replace(file.Name, "").Replace("xlsx","");
                //MessageBox.Show(TableName);
                //Get Sheet Name
                   cnn.Open();
                DataTable dtSheet = cnn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                string sheetname;
                sheetname="";
           foreach (DataRow drSheet in dtSheet.Rows)
            {
                if (drSheet["TABLE_NAME"].ToString().Contains("$"))
                {
                     sheetname=drSheet["TABLE_NAME"].ToString();
                     
                     //Load the DataTable with Sheet Data so we can get the column header
                     OleDbCommand oconn = new OleDbCommand("select top 1 * from [" + sheetname + "]", cnn);
                     OleDbDataAdapter adp = new OleDbDataAdapter(oconn);
                     DataTable dt = new DataTable();
                     adp.Fill(dt);
                     cnn.Close();

                     //Prepare Header columns list so we can run against Database to get matching columns for a table.
                     string ExcelHeaderColumn = "";
                     string SQLQueryToGetMatchingColumn = "";
                     for (int i = 0; i < dt.Columns.Count; i++)
                     {
                         if (i != dt.Columns.Count - 1)
                             ExcelHeaderColumn += "'" + dt.Columns[i].ColumnName + "'" + ",";
                         else
                             ExcelHeaderColumn += "'" + dt.Columns[i].ColumnName + "'";
                     }

                     SQLQueryToGetMatchingColumn = "select STUFF((Select  ',['+Column_Name+']' from Information_schema.Columns where Table_Name='" +
                         TableName + "' and Table_SChema='" + SchemaName + "'" +
                         "and Column_Name in (" + @ExcelHeaderColumn + ") for xml path('')),1,1,'') AS ColumnList";

                     // MessageBox.Show(SQLQueryToGetMatchingColumn);
                     //MessageBox.Show(ExcelHeaderColumn);

                     //USE ADO.NET Connection
                     SqlConnection myADONETConnection = new SqlConnection();
                     myADONETConnection = (SqlConnection)(Dts.Connections["DBConn"].AcquireConnection(Dts.Transaction) as SqlConnection);

                     //Get Matching Column List from SQL Server
                     string SQLColumnList = "";
                     SqlCommand cmd = myADONETConnection.CreateCommand();
                     cmd.CommandText = SQLQueryToGetMatchingColumn;
                     SQLColumnList = (string)cmd.ExecuteScalar();

                     //MessageBox.Show(" Matching Columns: " + SQLColumnList);


                     //Use Actual Matching Columns to get data from Excel Sheet
                     OleDbConnection cnn1 = new OleDbConnection(ConStr);
                     cnn1.Open();
                     OleDbCommand oconn1 = new OleDbCommand("select " + SQLColumnList + " from [" + sheetname + "]", cnn1);
                     OleDbDataAdapter adp1 = new OleDbDataAdapter(oconn1);
                     DataTable dt1 = new DataTable();
                     adp1.Fill(dt1);
                     cnn1.Close();


                     //Load Data from DataTable to SQL Server Table.
                     using (SqlBulkCopy BC = new SqlBulkCopy(myADONETConnection))
                     {
                         BC.DestinationTableName = SchemaName + "." + TableName;
                         foreach (var column in dt1.Columns)
                             BC.ColumnMappings.Add(column.ToString(), column.ToString());
                         BC.WriteToServer(dt1);
                     }

                }
                } 
            }


Step 5: Run SSIS Package to Load Excel Data to SQL Server table/s according to Excel File Names
Save the script and Close the Script Task Editor. Run your SSIS Package. It should load the data from single or multiple excel sheets to SQL Server table depending upon Excel file name.

I ran my package and it loaded data to Product and Customer Table from above Files.

How to load data from Excel File to SQL Server table according to the name of Excel file in SSIS Package by using Script Task C# Scripting Language



Things we learnt in this post
How to load Data from Excel Files to SQL Server Table by using C#
How to load Excel files by name to SQL server Tables in SSIS Package by using Script Task
How to read Excel File Name in SSIS Package
How to Check matching Header Column Names to SQL Server Table by using C sharp
How to save scalar string value from SQL Server Query to Variable in C Sharp
How to use BulkCopy to load data from DataTable to SQL Server Table
How to Map Columns Dynamically in BulkCopy C Sharp


Check out our other posts/videos for Dynamic Excel Source and Destination
  1. How to Load Data from Excel Files when Number of Columns can decrease or order is changed in Excel Sheet
  2. How to Load Only Matching Column Data to SQL Server Table from Multiple Excel Files (Single Sheet per file) Dynamically in SSIS Package
  3. How to Load Excel File Names with Sheet Names ,Row Count,Last Modified Date, File Size in SQL Server Table
  4. How to Load Multiple Excel Files with Multiple Sheets to Single SQL Server Table by using SSIS Package
  5. How to Load Matching Sheets from Excel to Table and Log Not Matching Sheets Information in SQL Server Table
  6. How to create Table for each sheet in Excel Files and load data to it dynamically in SSIS Package
  7. How to Create Table per Excel File and Load all Sheets Data Dynamically in SSIS Package by using Script Task 
  8. How to create CSV file per Excel File and Load All Sheets from Excel File to it in SSIS Package
  9. How to Create CSV File for Each Excel Sheet from Excel Files in SSIS Package
  10. How to Load Excel File Name and Sheet Name with Data to SQL Server in SSIS Package
  11. How to Import data from Multiple Excel Sheets with a pattern of sheet names from Multiple Excel File in SSIS Package
  12. How to import Data from Excel Files for specific Sheet Name to SQL Server Table in SSIS Package
  13. Load Data To Tables according to Excel Sheet Names from Excel Files dynamically in SSIS Package
  14. How to Load Excel Files with Single/ Multiple Sheets to SQL Server Tables according to Excel File Name Dynamically
  15. How to Read Excel Sheet Data after Skipping Rows in SSIS Package by using Script Task 
  16. How to read data from Excel Sheet and Load to Multiple Tables by using Script Task in SSIS Package
  17. How to create Excel File Dynamically from SQL server Table/View by using Script Task in SSIS Package
  18. How to create Excel File Dynamically for Stored Procedure Results in SSIS Package by using Script Task
  19. How to Export SQL Server Tables from Database to Excel File Dynamically in SSIS Package by using Script Task
  20. How to Convert CSV/Text Files to Excel Files in SSIS Package by using Script Task
  21. How to Load All CSV Files to Excel Sheets ( Sheet Per CSV) in single Excel File in SSIS Package
  22. How to Load All CSV Files to Single Excel Sheet with File Names in an Excel File Dynamically in SSIS Package
  23. How to Create Sample Excel file with Sheet from each table with Top 1000 Rows per sheet in SSIS Package
  24. How to Export Data to Multiple Excel Sheets from Single SQL Server Table in SSIS Package