Loading Images into BLOB.

I have written pl/sql code for mass load of images into blob. When user is trying to access it from front end. some of the images are corrupted. means blank page is displayed but for other the actual image is displayed. So is there any size limitation on blob images???mostly images i am storing is of 20kb - 300kb.
Thanks in advance.

There is a definite limit to the size of blobs you can store. That limit is (4GB-1 byte)*(block size) which means between 8 and 128TB.
I highly doubt your issue is storing the BLOBs in the Oracle database though since you thought it unimportant to post version information, DDL, or DML no one can possibly tell for sure.
I would be far more suspicious of whatever tool, also unmentioned, being used to retrieve and display them.

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