Question

I wrote a servlet program to upload an image to Oracle table. I am using Oracle 10g version.

I created the table using

create table insertimage( image BLOB);

The table was created successfully. My servlet shows image uploaded successfully. Even when I delete using

delete from insertimage;

it shows successful row deletion.

But when I try to see the table content using

select * from insertimage;

it gives me

ORA-00932: inconsistent datatypes: expected NUMBER got BLOB error. 

So how can I check if the image has been successfully uploaded or not directly in the Oracle table?

Answer 1

There are lot of third party IDEs which you can use – a good free one would be Oracle’s own SQL Developer

Double click on the table from the object tree. On the “Data” tab, click the “…” button with the BLOB column & then click the “View as Image” checkbox