UNIX for Advanced & Expert Users

Hi,
I need to export some entries from a table, from a specific column and then redirect them into a file.
I used sql plus, in order to fetch the entries and i put them in one variable.
When i am running the script it stuck at a point and does not move further.

I did something like:

Code:

$OUTPUT=`sqlplus -s $USER/$PASS@$INST << END
SELECT col1
FROM table
WHERE col2='A';
EXIT;
END`

for element in $OUTPUT
do
        echo $OUTPUT
done

variables $USER/$PASS@$INST, contain correctly the db details, as per what i see after doing echo

Could someone advice?
Thank you