US Patent 11921878 Database security through obfuscation

An embodiment may involve a database including a table, wherein the table contains database records and a schema by which the database records are arranged. The embodiment may further involve one or more processors configured to: obtain a query that references the table and one or more elements of the schema; copy at least part of the table into a second table; transform, using a deterministic one-way function, the schema of the second table and the database records within the second table; transform, using the deterministic one-way function, the query into a second query; and write, to memory, at least part of the second table and the second query.