export images

8/2/2019 Export Images

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Exporting images with SSIS

Case In a previous article I showed you how to import images (or other files) with SSIS into a SQL

Server table. This article shows you how to get them out again with the Export ColumnTransformation .

Solution This example assumes that you have a filled table named ImageStore which I created in theprevious article.12345

CREATE TABLE [dbo].[ImageStore]( [id] [int] IDENTITY(1,1) NOT NULL, [imageName] [nvarchar](50) NULL, [imageFile] [varbinary](max) NULL

) ON [PRIMARY]

1) Variables Add a string variable to the package to store the path of the export folder.I called mine ExportFolder . Fill it with a value like: C:\Users\Joost\Pictures\Export\

Variable to store the export folder

2) OLE DB Source Add an OLE DB Source component that reads from the table ImageStore. We need the

columns imageName and imageFile.

OLE DB Source component
http://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.htmlhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.htmlhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.htmlhttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://1.bp.blogspot.com/-lgxKSvi3eUw/TjQAlDryE2I/AAAAAAAAAX8/mJ4SUIq3Pb8/s1600/importimages16.jpghttp://1.bp.blogspot.com/-uiXqk8KRHaY/TjP8McnhGXI/AAAAAAAAAX4/IBNB99P0SN8/s1600/importimages15.jpghttp://1.bp.blogspot.com/-lgxKSvi3eUw/TjQAlDryE2I/AAAAAAAAAX8/mJ4SUIq3Pb8/s1600/importimages16.jpghttp://1.bp.blogspot.com/-uiXqk8KRHaY/TjP8McnhGXI/AAAAAAAAAX4/IBNB99P0SN8/s1600/importimages15.jpghttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://msdn.microsoft.com/en-us/library/ms139818.aspxhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html


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3) Derived Column With the folderpath from the variable and the filename from the column imageName wecreate an export filepath which is needed for the Export Column component. Name itNewFilePath.

Expression: @[User::ExportFolder] + imageName
http://3.bp.blogspot.com/-HxUcvMkXiLw/TjQBU9fOhMI/AAAAAAAAAYA/IcgUl9cFxnQ/s1600/importimages17.jpg


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4) Export Column Add an Export Column component and select the imageFile column as Extract Column andthe NewFilePath column as File Path Column .

Export Column

5) The result Run the package and watch the folder for the result.
http://2.bp.blogspot.com/-DpQz6ybk7yE/TjQCaFXqHGI/AAAAAAAAAYE/6qhXBocO3JM/s1600/importimages18.jpg


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The result

Note: it also works with other filetypes, not just images.
http://2.bp.blogspot.com/-lmO12NK9PNg/TjRWeTqs5pI/AAAAAAAAAYI/Exb5EvfItp4/s1600/importimages19.jpg


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Importing images with SSIS

Case I want to import files (images) with SSIS to a SQL Server table. And export those images to an other

folder.

Solution The easiest way to import files/images with SSIS, is with the Import Column Transformation. Youthrow in a filepath and it creates a blob column with binary data. But the Script Component can beuseful too. For export you can use the Export Column Transformation.

Three examples: A) Importing images with Import Column

B) Importing images with Script Component and Import Column C) Importing images with Script Component

A) Importing images with Import Column For the first example I have created a CSV file with filepaths of images named bikes.csv:

C:\Users\Joost\Pictures\MountainBike1.jpgC:\Users\Joost\Pictures\MountainBike2.jpg

C:\Users\Joost\Pictures\MountainBike3.jpg

My target table looks like this:

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CREATE TABLE [dbo].[ImageStore](

[id] [int] IDENTITY(1,1) NOT NULL,

[imageName] [nvarchar](50) NULL,

[imageFile] [varbinary](max) NULL

) ON [PRIMARY]

Note: If you want to store images in a SQL Server table use the VARBINARY datatype because theIMAGE datatype is due to be removed from SQL Server.

A1) Flat File Source Go to your Data Flow and use a Flat File Source to read the CSV file from above.
http://msdn.microsoft.com/en-us/library/ms141262.aspxhttp://msdn.microsoft.com/en-us/library/ms141262.aspxhttp://msdn.microsoft.com/en-us/library/ms141262.aspxhttp://microsoft-ssis.blogspot.com/2011/08/exporting-images-with-ssis.htmlhttp://microsoft-ssis.blogspot.com/2011/08/exporting-images-with-ssis.htmlhttp://microsoft-ssis.blogspot.com/2011/08/exporting-images-with-ssis.htmlhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Ahttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Ahttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Bhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Bhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Chttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Chttp://www.blogger.com/http://www.blogger.com/http://www.blogger.com/http://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Chttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Bhttp://microsoft-ssis.blogspot.com/2011/08/importing-images-with-ssis.html#Ahttp://microsoft-ssis.blogspot.com/2011/08/exporting-images-with-ssis.htmlhttp://msdn.microsoft.com/en-us/library/ms141262.aspx


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Import file with only one column: ImagePath

A2) Get filename from path I also want to store the original filename in my table. I use an expression in a Derived Column to getthe filename from the filepath. Add a Derived Column and add a new column named FileName. Theexpression is:RIGHT(ImagePath,FINDSTRING(REVERSE(ImagePath),"\\",1) - 1)
http://4.bp.blogspot.com/-QfUl8guYYto/TjOnAlofHXI/AAAAAAAAAW8/y5Fi0Yhddcc/s1600/importimages1.jpghttp://microsoft-ssis.blogspot.com/2011/06/often-used-ssis-expressions.htmlhttp://microsoft-ssis.blogspot.com/2011/06/often-used-ssis-expressions.htmlhttp://microsoft-ssis.blogspot.com/2011/06/often-used-ssis-expressions.htmlhttp://4.bp.blogspot.com/-QfUl8guYYto/TjOnAlofHXI/AAAAAAAAAW8/y5Fi0Yhddcc/s1600/importimages1.jpghttp://microsoft-ssis.blogspot.com/2011/06/often-used-ssis-expressions.html


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Extract filename from filepath

A3) Import Column Now the actual importing of the image files into SSIS. Add a Import Column to the Control Flow.
http://1.bp.blogspot.com/-Jay4JbonCbs/TjOpmAsKo_I/AAAAAAAAAXA/SeV1D9sqmOI/s1600/importimages2.jpg


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Import Column

A4) Input Columns Edit the Import Column transformation and go to the Input Columns tab. Select the column thatcontains the filepath of the images.
http://3.bp.blogspot.com/-IRLGMNiWhVw/TjOq-GP4XtI/AAAAAAAAAXE/Fb4CNAeDgYI/s1600/importimages3.jpghttp://3.bp.blogspot.com/-IRLGMNiWhVw/TjOq-GP4XtI/AAAAAAAAAXE/Fb4CNAeDgYI/s1600/importimages3.jpg


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Select column

A5) Input and Output Properties Go to the Input and Output Properties tab and add a new output column of the type DT_IMAGE andgive it the name ImageData. Remember the generated ID because you need it for the next step.
http://4.bp.blogspot.com/-Lsv5kzOT0F4/TjOs45SnOCI/AAAAAAAAAXI/EPZbjbkPJuQ/s1600/importimages4.jpghttp://4.bp.blogspot.com/-Lsv5kzOT0F4/TjOs45SnOCI/AAAAAAAAAXI/EPZbjbkPJuQ/s1600/importimages4.jpg


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New output column: DT_IMAGE

A6) Connect input and output Now go to the Input Columns. Select the input column and change the FileDataColumnId to the ID of the output column (24 in my case).
http://4.bp.blogspot.com/-cO6tZJwO7Xk/TjO0K02Q8mI/AAAAAAAAAXQ/tut8QgMCZVY/s1600/importimages5.jpghttp://4.bp.blogspot.com/-cO6tZJwO7Xk/TjO0K02Q8mI/AAAAAAAAAXQ/tut8QgMCZVY/s1600/importimages5.jpg


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FileDataColumnId

A7) OLE DB Destination Now you're ready to import the data in the database table. Add an OLE DB Destination and selectthe table ImageStore. Connect FileName to imageName and ImageData to imageFile.
http://1.bp.blogspot.com/-r22WEIbqkVE/TjO0w7NLlXI/AAAAAAAAAXU/1WjE-l-SSHI/s1600/importimages6.jpghttp://1.bp.blogspot.com/-r22WEIbqkVE/TjO0w7NLlXI/AAAAAAAAAXU/1WjE-l-SSHI/s1600/importimages6.jpg


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OLE DB Destination

A8) The result Run the package and watch the table for the result.
http://1.bp.blogspot.com/-3CU3CDyMZjU/TjPV6aLHMDI/AAAAAAAAAXY/kBNWm2D_5nU/s1600/importimages7.jpghttp://1.bp.blogspot.com/-3CU3CDyMZjU/TjPV6aLHMDI/AAAAAAAAAXY/kBNWm2D_5nU/s1600/importimages7.jpg


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The result

B) Importing images with Script Component and Import

Column
http://2.bp.blogspot.com/-k669uLeXzi8/TjPbKqON3WI/AAAAAAAAAXc/FA4CZY4t3Ho/s1600/importimages8.jpghttp://www.blogger.com/http://www.blogger.com/http://2.bp.blogspot.com/-k669uLeXzi8/TjPbKqON3WI/AAAAAAAAAXc/FA4CZY4t3Ho/s1600/importimages8.jpghttp://www.blogger.com/


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This example only replaces the Flat File Source Component from example A into a Script Componentthat reads all files in a certain folder.

Replace CSV file by Script Component

B1) Variable Add a string variable to the package to store the path of the folder with images.I called mine imageLocation . Fill it with a value like: C:\Users\Joost\Pictures\
http://4.bp.blogspot.com/-wWHQciIXlAY/TjU9ic6wSBI/AAAAAAAAAYM/mnxNxPt3mJU/s1600/importimages20.jpg


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Variable to store the import folder

B2) Script Component Add a Script Component to the Data Flow and select Source as the Script Component Type.

Script Component Source
http://3.bp.blogspot.com/-xfsUBqhsLp0/TjP7v34dIWI/AAAAAAAAAX0/zIWAzJb1G3M/s1600/importimages14.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://3.bp.blogspot.com/-xfsUBqhsLp0/TjP7v34dIWI/AAAAAAAAAX0/zIWAzJb1G3M/s1600/importimages14.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://3.bp.blogspot.com/-xfsUBqhsLp0/TjP7v34dIWI/AAAAAAAAAX0/zIWAzJb1G3M/s1600/importimages14.jpg


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B3) Select variable Select the variable from step 1 as a ReadOnly variable.

Select ReadOnlyVariables
http://2.bp.blogspot.com/-nQBdHgKhGlU/TjPuGU6npoI/AAAAAAAAAXo/9HxopqkA1nM/s1600/importimages11.jpg


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B4) Inputs and Outputs Go to the Inputs and Outputs tab and add an output column: imageName (Unicode string[DT_WSTR] 150).

Column for storing the image path
http://2.bp.blogspot.com/-20Q6cLoqXTk/TjVBORDno1I/AAAAAAAAAYQ/GIT0EHh8oME/s1600/importimages21.jpg


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B5) The Script Edit the Script and replace the script with this one (we only need CreateNewOutputRows).

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//C# Code

using System;

using System.Data;

using System.IO; // Added

using Microsoft.SqlServer.Dts.Pipeline.Wrapper;

using Microsoft.SqlServer.Dts.Runtime.Wrapper;

[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]

public class ScriptMain : UserComponent

{

public override void CreateNewOutputRows()

{

// Get all files within the folder

string[] allFiles =Directory.GetFiles(this.Variables.imageLocation.ToString());

// Loop through the files in the folder

foreach (string currentFile in allFiles)

{

// Create a new record foreach file

this.Output0Buffer.AddRow();

Output0Buffer.ImagePath = currentFile;

}

}

}

Or VB.Net


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' VB.Net Code

Imports System

Imports System.Data

Imports System.IO ' Added

Imports System.Math

Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper

Imports Microsoft.SqlServer.Dts.Runtime.Wrapper

_

_

Public Class ScriptMain

Inherits UserComponent

Public Overrides Sub CreateNewOutputRows()

' Get all files within the folder

Dim allFiles() As String =Directory.GetFiles(Me.Variables.imageLocation.ToString())

' Loop through the files in the folder

Dim currentFile As String

For Each currentFile In allFiles

' Create a new record foreach file

Me.Output0Buffer.AddRow()

Output0Buffer.imagePath = currentFile

Next

End Sub

End Class

B6) Restore Invalid Column References


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Connect the new Script Component to the Derived Column and map the old imagePath column tonew imagePath Column by double clicking on the Derived Column and pressing OK to confirm themapping.

Restore Invalid Column References editor

B7) The result Run the package and watch the table for the result.
http://2.bp.blogspot.com/-jIQKOo-1oAI/TjVF3Mo2oII/AAAAAAAAAYU/5M6-FqZGpfY/s1600/importimages22.jpg


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The result

C) Importing images with Script Component This example uses a Script Component to import all files in a folder to the same database table as in
http://1.bp.blogspot.com/-9ArZcd0gfYE/TjVHnGA-LUI/AAAAAAAAAYY/ftmBfHoEQZs/s1600/importimages23.jpghttp://www.blogger.com/http://1.bp.blogspot.com/-9ArZcd0gfYE/TjVHnGA-LUI/AAAAAAAAAYY/ftmBfHoEQZs/s1600/importimages23.jpghttp://www.blogger.com/


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Script Component Source

C3) Select variable

Select the variable from step 1 as a ReadOnly variable.

Select ReadOnlyVariables
http://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://4.bp.blogspot.com/-6alTdNeb04g/TjPrd80DLvI/AAAAAAAAAXg/h7PzztlmrGc/s1600/importimages9.jpghttp://2.bp.blogspot.com/-nQBdHgKhGlU/TjPuGU6npoI/AAAAAAAAAXo/9HxopqkA1nM/s1600/importimages11.jpg


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C4) Inputs and Outputs Go to the Inputs and Outputs tab and add two output columns: imageName (Unicode string[DT_WSTR] 50) and imageFile (image [DT_IMAGE]).

Create two output columns
http://4.bp.blogspot.com/-0y9DI1vo9xE/TjPsoh7mHkI/AAAAAAAAAXk/YiPptTsxnKk/s1600/importimages10.jpg


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C5) The Script Edit the Script and replace the script with this one (we only need CreateNewOutputRows).

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// C# Code

using System;

using System.Data;

using System.IO; // Added

using Microsoft.SqlServer.Dts.Pipeline.Wrapper;

using Microsoft.SqlServer.Dts.Runtime.Wrapper;

[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]

public class ScriptMain : UserComponent

{

public override void CreateNewOutputRows()

{

// Get all files within the folder

string[] allFiles =Directory.GetFiles(this.Variables.imageLocation.ToString());

// Variable for storing file properties

FileInfo fileInfo;

// Loop through the files in the folder

foreach (string currentFile in allFiles)

{


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// Fill fileInfo variable with file information

fileInfo = new FileInfo(currentFile);

// Create new record

this.Output0Buffer.AddRow();

// Fill filename column

Output0Buffer.imageName = fileInfo.Name;

// Stream the file into a byte[] object which can be used ascolumn data

FileStream fs = File.OpenRead(fileInfo.FullName);

byte[] b = new byte[fs.Length];

fs.Read(b, 0, b.Length);

// Fill column and close filestream

Output0Buffer.imageFile.AddBlobData(b);

fs.Close();

}

}

}

or VB.Net

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' VB.Net code

Imports System

Imports System.Data

Imports System.IO ' Added

Imports System.Math


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Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper

Imports Microsoft.SqlServer.Dts.Runtime.Wrapper

_

_

Public Class ScriptMain

Inherits UserComponent

Public Overrides Sub CreateNewOutputRows()

' Get all files within the folder

Dim allFiles As String() =Directory.GetFiles(Me.Variables.imageLocation.ToString())

' Variable for storing file properties

Dim fileInfo As FileInfo

' Loop through the files in the folder

Dim currentFile As String

For Each currentFile In allFiles

' Fill fileInfo variable with file information

fileInfo = New FileInfo(currentFile)

' Create new record

Me.Output0Buffer.AddRow()

' Fill filename column

Output0Buffer.imageName = fileInfo.Name


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' Stream the file into a byte() object which can be used ascolumn data

Dim fs As FileStream = File.OpenRead(fileInfo.FullName)

Dim b(fs.Length - 1) As Byte

fs.Read(b, 0, b.Length)

' Fill column and close filestream

Output0Buffer.imageFile.AddBlobData([b])

fs.Close()

Next

End Sub

End Class


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Note: Don't forget to add error handling and logging .

C6) OLE DB Destination Now you're ready to import the data in the database table. Add an OLE DB Destination and selectthe table ImageStore. Connect imageName to imageName and imageFile to imageFile.

Connect input and destination columns
http://microsoft-ssis.blogspot.com/2011/02/script-task-and-component-logging.htmlhttp://microsoft-ssis.blogspot.com/2011/02/script-task-and-component-logging.htmlhttp://microsoft-ssis.blogspot.com/2011/02/script-task-and-component-logging.htmlhttp://1.bp.blogspot.com/-HGMSrj7gwvQ/TjP1bodg6KI/AAAAAAAAAXs/pe8TvHJw_ic/s1600/importimages12.jpghttp://microsoft-ssis.blogspot.com/2011/02/script-task-and-component-logging.html


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C7) The result Run the package and watch the table for the result.

The result

Note: it also works with other filetypes, not just images
http://3.bp.blogspot.com/-7B67j2qEb6k/TjP2xNr8paI/AAAAAAAAAXw/Sx8nfJ4UeCg/s1600/importimages13.jpg

export images

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