A method of interrogation or modification of a database having a plurality of tables each with fields and relationships between the fields of various tables, the method including: filling in a single privileged table; filling in at least one field in another table for which data are sought or to be modified; filling in at least one filter pertaining to a field of another table allowing the selection of the data sought or to be modified; identifying in the database, using the input fields and the fields appearing in the input filters, the tables containing these fields; identifying in the database, using the input fields and the fields appearing in the input filters, the relationships between these fields of various tables; reformulating a query to the database by stating in full the fields, the identified tables, joins representative; and applying the query to the database.