POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
RESERVES_CATEGORY_CHANGE
SUBTYPE OF
(
association
);
delta_gas :
OPTIONAL
ndt_std_volume_gas
;
delta_liquid :
OPTIONAL
ndt_std_volume_liquid
;
original_reserves :
OPTIONAL
reserves
;
ref_reserves_change_reason :
ref_reserves_change_reason
;
result_reserves :
reserves
;
UNIQUE
si: original_reserves, result_reserves;
WHERE
dri: original_reserves :<>: result_reserves;
sri1: original_reserves.fluid_component :=: result_reserves.fluid_component;
END_ENTITY
; (* reserves_category_change *)
Generated on Tue Jul 10 19:38:59 2001
© Copyright 2001 POSC. All rights reserved.