def testBindNull(self):
        self.cursor.setinputsizes(value = cx_Oracle.INTERVAL)
        self.cursor.execute("""
                select * from TestIntervals
                where IntervalCol = :value""",
                value = None)
        self.failUnlessEqual(self.cursor.fetchall(), [])
lookup/assign a unique identify for each word
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/cx_Oracle-5.1.2/test/IntervalVar.py/TestIntervalVar.testBindNull--crossover with--dataset/ETHPy150Open ceteri/exsto/exsto.py/get_word_id