Method and system for selecting at least one data record from a relational database

A method for selecting at least one data record from a relational database having a plurality of data records each having at least two attributes each with a type of the attribute and a value of the attribute includes: providing a first subset of data records from the relational database on the basis of a stipulation for the type of a first attribute and independently of a stipulation for the value of the first attribute; selecting data records from the first subset on the basis of a stipulation for a second attribute; providing the selected data records in a second subset; and then selecting the at least one data record from the second subset on the basis of the stipulation for the value for the first attribute.