It is generally better to save the balance. The general rule inaccounting systems design is "what can be printed, should beexplicitly on disk". for an invoice: value before tax, tax percentage, value after tax, total before tax,total after tax, etc, should all be saved explicitly. An account should have a balance. Every operation should have balancebefore operation, value, balance after operation. You should neverupdate an operation. This way when business rules change all previous documents are storedin consistent state. GreetingsMarcin Mańk -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)To make changes to your subscription:http://www.postgresql.org/mailpref/pgsql-general
