Problem:
This Demo reads in the binary data of a .jpg and then writes it to a database 8KB at a time. The .jpg is stored in the database as an Image field. It then reads this Image field 8KB at a time into a memory buffer and then writes it to a file on disk and then opens the file.
Resolution:
INTRODUCTION
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This Demo reads in the binary data of a .jpg and then writes it to a database 8KB at a time. The .jpg is stored in the database as an Image field. It then reads this Image field 8KB at a time into a memory buffer and then writes it to a file on disk and then opens the file.
SOURCE FILES:
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Program Files Description
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BlobDemo.cbl
Copy Files:
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SQLCA.CPY Located in your Net Express\\base\\source directory
WINDOWS.CPY Located in your Net Express\\base\\source directory
REQUIREMENTS:
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This demo works with SQL Server. Create an ODBC data source with the name BlobDB. Add the stored procedues to the database.
OPERATION:
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After you have set up the ODBC DSN and added the stroed procedurs to the database, run the program. It will create a table in the database and then write the binary data from the .jpg to the table. It will then read this binary data from the table into a memory buffer and write it to disk as a new .jpg file. It will then open this new .jpg file.
REFERENCES:
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NOTE:
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Keywords: demonstration, sample, example, demo, printraw.zip
demo.ex
demo.me
demo.ne
demo.se
