How to display and save a picture stored as BLOB in MySQL database in Jsp?

Hello i am doing a dataentry form where in i will display the picture stored as Blob in MySQL database to the browser. The form also allow changing the picture and updating the picture Blob in the database.
How can i do it? I try this
<img src'"<%=rs.getBlob("picture")%> but it doesn't display the picture.
another thing, how can i save it in the database, if is use the file field in the html form?
thanks in advance for your help.

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i searched on this forum but in don't found solution my problem.
I created table with a column blob and i design form that insert and display image stored in database ( oracle 9i )
i used image item type with block database based
my version forms is
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bye

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I tryed to make a code with Labview to process and save a picture.
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How to display and save a picture stored as BLOB in MySQL database in Jsp?

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