Algorithms for Updating Relational Data

Question

What algorithms are known to perform the task of updating a database by inserting, updating, and deleting rows in the presence of database constraints?

More specifically

Answer 1

It sounds like you are looking for a Database Diff tool. Such a tool would look for differences between two tables (or two databases), and generate the necessary scripts to align them.

See the following post for more information:
https://stackoverflow.com/questions/104203/anyone-know-of-any-good-database-diff-tools