How to Export All tables of a database to Excel Files with Datetime in SSIS Package - SSIS Tutorial

Scenario: Download Script

Long time back, I wrote a post How to Export all SQL Server Tables to CSV/Text Files. You can check here. In this post we are going to learn How to create Excel file per table for all the tables from a database. 


Solution:

We are going to use Script Task in SSIS Package to export all the tables from SQL Server database to Excel Files. 

Step 1: 
Open SSDT ( SQL Server Data Tools), create new SSIS Package. Create a variable FolderPath where you would like to export all the tables from a database to excel files.

Create variable in SSIS Package to create excel file per table from a database- SSIS Tutorial


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 get tables data to export to Excel Files. This ADO.Net connection should be pointing to Database from which we would like to export tables to Excel Files.

Create ADO.NET Connection to Database from which we would like to export all the tables to Excel Files in SSIS


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.
Add SSIS Package Variables to Script Task to create excel files for all the tables from a database and export data


Step 4: Add Script to Script task Editor in SSIS Package to Export All tables from SQL server Database to Excel Files with datetime.
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 datetime = DateTime.Now.ToString("yyyyMMddHHmmss");
            try
            {

                //Declare Variables
                              
                string FolderPath = Dts.Variables["User::FolderPath"].Value.ToString();
                
               //USE ADO.NET Connection from SSIS Package to get data from table
                SqlConnection myADONETConnection = new SqlConnection();
                myADONETConnection = (SqlConnection)(Dts.Connections["DBConn"].AcquireConnection(Dts.Transaction) as SqlConnection);


                //Read list of Tables with Schema from Database
                string query = "SELECT Schema_name(schema_id) AS SchemaName,name AS TableName FROM   sys.tables WHERE  is_ms_shipped = 0";

                //MessageBox.Show(query.ToString());
                SqlCommand cmd = new SqlCommand(query, myADONETConnection);
                //myADONETConnection.Open();
                DataTable dt = new DataTable();
                dt.Load(cmd.ExecuteReader());
                myADONETConnection.Close();

                //Loop through datatable(dt) that has schema and table names

                foreach (DataRow dt_row in dt.Rows)
                {
                    string SchemaName = "";
                    string TableName = "";
                    object[] array = dt_row.ItemArray;
                    SchemaName = array[0].ToString();
                    TableName = array[1].ToString();


                    string ExcelFileName = "";
                    ExcelFileName = SchemaName+"_"+TableName + "_" + datetime;
                    OleDbConnection Excel_OLE_Con = new OleDbConnection();
                    OleDbCommand Excel_OLE_Cmd = new OleDbCommand();

                    //Construct ConnectionString for Excel
                    string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + FolderPath + ExcelFileName
                        + ";" + "Extended Properties=\"Excel 12.0 Xml;HDR=YES;\"";

                    //Load Data into DataTable from SQL ServerTable
                  
                    string queryString =
                      "SELECT * from " + SchemaName + "." + TableName;
                    SqlDataAdapter adapter = new SqlDataAdapter(queryString, myADONETConnection);
                    DataSet ds = new DataSet();
                    adapter.Fill(ds);


                    //Get Header Columns
                    string TableColumns = "";

                    // Get the Column List from Data Table so can create Excel Sheet with Header
                    foreach (DataTable table in ds.Tables)
                    {
                        foreach (DataColumn column in table.Columns)
                        {
                            TableColumns += column + "],[";
                        }
                    }

                    // Replace most right comma from Columnlist
                    TableColumns =("["+ TableColumns.Replace(",", " Text,").TrimEnd(','));
                    TableColumns = TableColumns.Remove(TableColumns.Length - 2);
                    //MessageBox.Show(TableColumns);


                    //Use OLE DB Connection and Create Excel Sheet
                    Excel_OLE_Con.ConnectionString = connstring;
                    Excel_OLE_Con.Open();
                    Excel_OLE_Cmd.Connection = Excel_OLE_Con;
                    Excel_OLE_Cmd.CommandText = "Create table [" + SchemaName+"_"+TableName + "] (" + TableColumns + ")";
                    Excel_OLE_Cmd.ExecuteNonQuery();


                    //Write Data to Excel Sheet from DataTable dynamically
                    foreach (DataTable table in ds.Tables)
                    {
                        String sqlCommandInsert = "";
                        String sqlCommandValue = "";
                        foreach (DataColumn dataColumn in table.Columns)
                        {
                            sqlCommandValue += dataColumn + "],[";
                        }

                        sqlCommandValue="["+sqlCommandValue.TrimEnd(',') ;
                        sqlCommandValue = sqlCommandValue.Remove(sqlCommandValue.Length - 2);
                        sqlCommandInsert = "INSERT into [" + SchemaName+"_"+TableName + "] (" + sqlCommandValue +") VALUES(";

                        int columnCount = table.Columns.Count;
                        foreach (DataRow row in table.Rows)
                        {
                            string columnvalues = "";
                            for (int i = 0; i < columnCount; i++)
                            {
                                int index = table.Rows.IndexOf(row);
                                columnvalues += "'" + table.Rows[index].ItemArray[i] + "',";

                            }
                            columnvalues = columnvalues.TrimEnd(',');
                            var command = sqlCommandInsert + columnvalues + ")";
                            Excel_OLE_Cmd.CommandText = command;
                            Excel_OLE_Cmd.ExecuteNonQuery();
                        }

                    }
                    Excel_OLE_Con.Close();
                }
                Dts.TaskResult = (int)ScriptResults.Success;
            }

            catch (Exception exception)
            {
               
                // Create Log File for Errors
                using (StreamWriter sw = File.CreateText(Dts.Variables["User::FolderPath"].Value.ToString() + "\\" +
                    Dts.Variables["User::ExcelFileName"].Value.ToString() + datetime + ".log"))
                {
                    sw.WriteLine(exception.ToString());
                    Dts.TaskResult = (int)ScriptResults.Failure;
                    
                }

               }


Step 5: Save script and Run SSIS Package to Export all tables from a database to Excel Files
Save the script in Script Task Editor and then close the window. Run your SSIS Package, it should export all tables from SQL Server database to Excel Files. Each Table will be export to new Excel file with datetime.

I execute package for my database and it created below excel files as shown below.

 How to export all tables from a database to Excels files in SSIS Package - SSIS Tutorial


Check the video Demo how to export all tables from sql server database to Excel Files



Check out our other posts/ videos on Excel Source and Destinations (Script Task- Dynamic)
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