Capture picture From camera

Question

Hi....I want to capture the picture into a Blob column.I have a PC and a camera.What should I do.

Answer 1

Hi,
There are a number of different ways to do this, and how you make the choice will depend on your application requirements.
If this is a 'once-only' requirement, and the database is on the same machine you're using to download the images from the camera, then you could save the image files on a local hard drive, create a database directory (SQL> CREATE DIRECTORY...), then load the images from the disk into BLOBs using the DBMS_LOB.LOADFROMFILE procedure.
For more information on LOBs, see Oracle Application Developer's Guide - Large Objects (LOBs), Oracle SQL Reference, and Oracle Supplied PL/SQL Packages and Types Reference.
If you need to repeat this this many times, with lots of images each time, then you might want to consider SQL*Loader. See the SQL*Loader documentation for more information on how to use SQL*Loader to load BLOBs.
If you want lots of user's to be able to do this from different PCs, or if the database is on a different machine than the PC with the photos, then you might want to consider writing a Java JDBC application or a web application to do this. Of course, the advantage of a web application is that it can be accessed using a browser from any system, whereas a Java app would have to be copied to each PC.
There's a feature called interMedia that ships with Oracle8i and Oracle9i that includes database object types with support for images (and audio and video). The interMedia ORDSYS.ORDImage type allows you to extract properties from images, and process images, for example, to create thumbnail images, and so on. There are two photo album demos that illustrate how to upload, process, and retrieve images stored using the interMedia ORDImage type: the interMedia Photo Album demo Servlet/JSPs demo and the interMedia Photo Album Demo for the PL/SQL Gateway. These demos are included with the Oracle9i database kit, and can be downloaded for Oracle8i from the interMedia samples page on OTN (Java Servlets/JSPs demo[url and [url=http://otn.oracle.com/sample_code/products/intermedia/htdocs/imedia_plsqlgw_sample/imedia_plsqlgw_readme.htm]PL/SQL Gateway demo[url)]. You could easily adapt these examples to use simple BLOBs instead of the ORDImage type, although you wouldn't be able to process the images (unless you used the interMedia relational API). For more information about interMedia, see the [url=http://otn.oracle.com/products/intermedia/]interMedia page on OTN.
Hope that helps.
Regards,
Simon
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