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Cannot insert null error


rbragg

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<?php
$queryInsertParent4Student = "
INSERT into schema.STUDENT (parent_num)
SELECT parent_num
FROM schema.PARENT
WHERE email = '" . $_SESSION['pMail'] . "'";
?>

 

Why does the above give me this error:

 

ORA-01400: cannot insert NULL

 

... when the session is tested and set AND there IS a parent_num for this email in the db?  ??? I think I'm just being dumb here. Thanks.

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