Handling Constraint Violations in RPG
February 17, 2010 Paul Tuohy
Constraints have been around for a long time but have not quite made it into every programmer’s tool kit. This is partly explained by the fact that implementing constraints in an existing application can be tricky–but it doesn’t explain why constraints are not used extensively in new applications.
On a side note, the lack of constraints on a database is one of the reasons I have heard why data should be moved/copied from the i to other database servers, such as SQL server and Oracle, for such things as data warehousing. To a “pure database person,” a lack of constraints