ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,493,594, issued on Dec. 9, was assigned to ENGYN PTY LTD (Sydney).

"Methods and systems for changing a database schema" was invented by Minh Lee (Sydney).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a method and a system for changing a database schema. The method comprises receiving a request to make a set of changes to a first version of the database schema of a database, and creating, based on the set of changes to the first version, a conversion rule for converting data records maintained by the database between the first version and a second version of the database schema. The second version results from the application of the set of c...