How to create Table for each sheet in Excel Files and load data to it dynamically in SSIS Package - SSIS Tutorial

Scenario: Script to download

You have tons of Excel files sitting in your source folder. Some of the Excel file has single sheet and some of them have multiple sheets. You got this requirement to create table for each of the sheets and load the data. As the tables are going to be dropped and created on each execution in staging database, you are going to use NVARCHAR(4000) for all the columns in your tables.

Once the data is loaded to staging database, you will have another process to read and convert the data to correct data types and load to your final destination tables.

The naming  convention you will be using for the Table will be FileName_SheetName.

here are my excel files with multiple sheets.
Excel files with multiple sheets- How to create new table for each sheet and load data in SSIS

File Customer_TechBrothersIT1.xlsx has two sheets MySheet and Sheet1

Customer_TechBrothersIT2.xlsx has also two sheets. 4 Tables should be created for these two files and 2 sheets.


We are going to use the Script Task in SSIS To handle this situation.

Step 1: 
Go ahead and create the variable called  FolderPath, so we can change the value for this variable anytime we need to by using SSIS Configuration.
Create variable in SSIS Package to dynamic creating Table and load data from Excel Sheet

Step 2:
Create ADO.NET Connection Manager as shown below in your SSIS Package.You have to provide SQL Server Instance Name and Database. I have renamed connection to DBConn as can be seen below.
How to use ADO.Net connection in Script Task in SSIS Package for Excel Dynamic Loading

Step 3:
Bring the Script Task to Control Flow Pane and open Script Task and map the variable as shown below.

Map variable in Script Task for Dynamic Excel Loading to SQL server Tables in SSIS Package

Step 4: 
Click on Edit Script Button and then copy below code to your Script Task Editor.

Under #Region NameSpaces, paste below namespaces.

using System.IO;
using System.Data.OleDb;
using System.Data.SqlClient;

Got to public void Main()
and paste below code.

String FolderPath=Dts.Variables["User::FolderPath"].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)
                    string filename = "";
                    fileFullPath = FolderPath+"\\"+file.Name;
                    filename = file.Name.Replace(".xlsx","");
                //Create Excel Connection
                string ConStr;
                string HDR;
                ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileFullPath + ";Extended Properties=\"Excel 12.0;HDR=" + HDR + ";IMEX=1\"";
                    OleDbConnection cnn = new OleDbConnection(ConStr);

                //Get Sheet Name
                DataTable dtSheet = cnn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                string sheetname;
           foreach (DataRow drSheet in dtSheet.Rows)
                if (drSheet["TABLE_NAME"].ToString().Contains("$"))
                     //Display Sheet Name , you can comment it out

                     //Load the DataTable with Sheet Data
           OleDbCommand oconn = new OleDbCommand("select * from [" + sheetname + "]", cnn);
                     OleDbDataAdapter adp = new OleDbDataAdapter(oconn);
                     DataTable dt = new DataTable();

                    //drop $from sheet name
                     sheetname = sheetname.Replace("$", "");
                    // Generate Create Table Script by using Header Column,It will drop the table if Exists and Recreate                  
                     string tableDDL = "";
                     tableDDL += "IF EXISTS (SELECT * FROM sys.objects WHERE object_id = ";
                  tableDDL +="OBJECT_ID(N'[dbo].[" + filename + "_"+sheetname+"]') AND type in (N'U'))";
                     tableDDL += "Drop Table [dbo].[" + filename + "_"+sheetname+"]";
                     tableDDL += "Create table [" + filename + "_"+sheetname+"]";
                     tableDDL += "(";
                     for (int i = 0; i < dt.Columns.Count; i++)
                         if (i != dt.Columns.Count - 1)
                 tableDDL += "[" + dt.Columns[i].ColumnName + "] " + "NVarchar(max)" + ",";
                      tableDDL += "[" + dt.Columns[i].ColumnName + "] " + "NVarchar(max)";
                     tableDDL += ")";

                     //use ADO.NET connection to Create Table from above Definition
                     SqlConnection myADONETConnection = new SqlConnection();
                     myADONETConnection = (SqlConnection)(Dts.Connections["DBConn"].AcquireConnection(Dts.Transaction) as SqlConnection);
                     //you can comment the messagebox, it is for debugging
                     SqlCommand myCommand = new SqlCommand(tableDDL, myADONETConnection);
                     //Comment this message, it is for debugging
                     MessageBox.Show("TABLE IS CREATED");

                     //Load the data from DataTable to SQL Server Table.
                     SqlBulkCopy blk = new SqlBulkCopy(myADONETConnection);
                     blk.DestinationTableName = "[" + filename + "_"+sheetname+"]";

Step 5:
Save the script in Script Task Editor and close the windows. Run the SSIS Package. It should read the excel files with sheets and create table for each of the sheet and load the data.

New Table created for each Excel sheet and data loaded to it from Excel by using Scrpt Task in SSIS

Let's take a look on data loaded to these Tables from Excel sheets

Table created for Excel Sheet and Data Loaded to it by using Script Task in SSIS Package

2nd Sheet data loaded after creating new table by using Script Task in SSIS Package

After loading all these files to different tables, you might want to archive(move) them to another folder, so when you run the package next time, it don't process them again. You can move them in script task as well. If you like to use File System task , below is the link

Archive Files And Add Timestamp To Each File Name [How To Use File System Task]

Things we learnt in this post
How to use variable in SSIS Package
How to use ADO.NET Connection manager in Script Task in SSIS Package
How to drop and create new table in SQL Server Database from Script Task by using C#
How to load data from Excel Sheet to SQL Server Table by using C# in Script Task in  SSIS Package

Check out our other posts/videos for Dynamic Excel Source and Destination
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  6. How to create Table for each sheet in Excel Files and load data to it dynamically in SSIS Package
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