A system and associated method for converting and storing data values. Receiving multiple primary keys, each primary key being associated with a unique table in a plurality of tables; multiple foreign keys, each foreign key being associated with at least two tables in the plurality of tables; and multiple datasets; each dataset containing a schema for a single table. Creating a schema control card identifying the primary keys, foreign keys, datasets' location, and identifies a path to traverse the tables. Creating either a storage control to store data values from the plurality of tables to a storage location, or creating a retrieval control card to retrieve a storage value from the storage location and return to the plurality of tables. The tables are traversed via the path and data values are either stored using the storage control card or retrieved using the retrieval control card.