------------------
PROJECTION table
-------------------
PROJECTION_ID, PROJECTION_TYPE
--------------------------------
1                  12  
2                  14  
3                  11  
--------------
P_Audit table
---------------
PROJECTION_ID, PROJECTION_TYPE, When_Changed
----------------------------------------------
5                  18             02/03/1996
2                  10             03/20/1996
3                  15             05/28/1996
2                  13             06/17/1996
4                  17             07/12/1996
