
/* Code Fragment 5.5 What was Bob's position at the begining of 1997 ? */

SELECT JOB_TITLE_CODE1
FROM EMPLOYEES, INCUMBENTS, POSITIONS
WHERE FIRST_NAME = 'Bob'
AND EMPLOYEES.SSN = INCUMBENTS.SSN
AND INCUMBENTS.PCN = POSITIONS.PCN
AND START_DATE <= '1997-01-01'
AND '1997-01-01' < END_DATE
