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Camera interfaces with Oracle

Oracle Database Tips by Donald Burleson

When storing pictures and photographs inside Oracle tables (as BLOB data types), we need to examine how to interface the camera device with the Oracle-based application.

Creative Labs : 73PD117000000 : Creative WebCam Notebook Camera USB Photograph picture capture devices are now inexpensive ($33.99) such as the Creative Webcam NoteBook camera that employs a CMOS color sensor that enables still images captures of 640 x 480 resolutions and live video up to 640 x 480resolutions at 15 fps. Its captures ultra close-up digitized images and uses a standard USB port.

The method for interfacing the camera with your Oracle application depends on the type of application, but the following rules can apply:

  • Use the cameras Java pop-up screen to allow the end-user to capture the photograph.
     

  • Upon save (usually to a flat file), a trigger fires to load the photograph (as a BFILE) from the flat file directory (/tmp is great) into the Oracle table.

The method for moving the newly-captured photo from the flat file to the table involves:

  • Setting the BFILE locator

  • Storing the photo into the table with dbms_lob

Click here for code examples for storing photographs into Orale tables from flat files.

 

 
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