Hydro4GE provides custom software, web and interactive
marketing solutions. We also sell and maintain Pario, a tool for developing and maintaining web-based applications.

Schema Evolution in Pario


The business needs served by a database may change often during its lifetime. On such occasions, it becomes necessary to modify the structure of the database in order to adapt it to its new requirements. This is called database schema evolution. Effective support for schema evolution is challenging because changes to schema must be propagated […]



Client Solutions


The core Pario logic has been used to build client database applications ranging from traditional information capture solutions to highly specialized/complex applications. Recent examples of traditional information capture, management and reporting solutions include: Centralized Inventory Management Database. Juror Selection Database. Tax Claim Information Database. Secure Work Order Portal for a national retail chain. Secure Employee […]