The Art of SQL Server FILESTREAM - Red Gate Software

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Chapter 5: FILESTREAM with ASP.NET and SilverlightLab 7: Displaying Thumbnail Images of Itemsfrom a FILESTREAM Database on an ASP.NETWeb PageIn this lab, we will create a web page that will display a list of items along with theirthumbnail images. We will use the web handler we created in the previous lab to fetchimages stored in the FILESTREAM column of a SQL Server database.To do this, we will:• create a stored procedure to fetch item details• add a new web form and a Grid View• create a data source that retrieves item information, and bind it to the Grid View• configure the Grid View• run and test the web page.Creating the stored procedure to fetch iteminformationThe first step is to create a stored procedure that returns the list of all the items in theItems table. However, before you begin, add a few records to the Items table (I'll leavethis as an exercise for the reader – I have populated my sample table with four rows, withfour different products and their thumbnail images).194
Chapter 5: FILESTREAM with ASP.NET and SilverlightNow, in the SSMS window run the code in Listing 5-13 to create the stored procedure.CREATE PROCEDURE GetItemListASBEGINSELECT ItemNumber ,ItemDescription ,'/GetItemImage.aspx?ItemNumber=' + ItemNumber AS ImageURLFROM ItemsENDListing 5-13:Creating a stored procedure to retrieve item information.Notice the third column returned by the stored procedure; the value returned by thiscolumn points to the page we created in the previous lab to return images from thedatabase. The value returned by this column will be used to bind the image control on thegrid that will display the thumbnails. Run the application we created in the previous laband load a few more images into the FILESTREAM table.Listing 5-14 shows an example results set from the stored procedure, based on the data Ientered for this demonstration.ItemNumber ItemDescription ImageURL---------- --------------- ----------------------------------1001 Microsoft Mouse /GetItemImage.aspx?ItemNumber=10013001 Dell Laptop /GetItemImage.aspx?ItemNumber=30014005 Apple iPad /GetItemImage.aspx?ItemNumber=40056009 Amazon Kindle /GetItemImage.aspx?ItemNumber=6009Listing 5-14:Example results from the stored procedure.195
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DBA HandbooksThe Art ofSQL Server F
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Copyright June 2012ISBN 978-1-90643
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Updating and deleting FILESTREAM da
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Creating the stored procedure to fe
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File Backups and Piecemeal Restores
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Setting Up the Server for FileTable
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Using SSMS to check that FILESTREAM
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Sven AeltermanSven Aelterman is a l
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Finding time for writing such a len
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IntroductionWhen I first started my
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The secondary audience for this boo
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Chapter 1: Storing and ManagingUnst
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Chapter 1: Storing and Managing Uns
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Setting the access levelChapter 1:
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Data usage patternsChapter 1: Stori
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Chapter 2: Getting Started with FIL
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Chapter 3: Accessing FILESTREAMData
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Creating a data sourceChapter 6: FI
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Chapter 7: FILESTREAM Database Admi
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Fixing corrupted dataChapter 7: FIL
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Chapter 9: Investigating FILESTREAM
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Chapter 10: Integrating FILESTREAMw
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Chapter 11: FileTableThe addition o
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Chapter 11: FileTableColumn Namestr
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Chapter 11: FileTable-- Find the pa
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Chapter 11: FileTableSELECT file_st
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Chapter 11: FileTableListing 11-29
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Chapter 11: FileTableInvestigating
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Chapter 12: Planning, Configuration
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Appendix A: Configuring FILESTREAMo
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Appendix A: Configuring FILESTREAM
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