A computer-implemented method implemented by a database management system (DBMS). The DBMS includes a database with a data table with a plurality of data columns and a condition table with condition columns and a score column. The DBMS receives a request and extracts a data vector from each data column and a condition vector from each condition column. For each of the data vectors, the DBMS computes a match vector selectively including identifiers of the rows in the condition table whose condition value is identical to an attribute value of said data vector, then, the DBMS selectively returns the rows of the condition table whose respective identifier is contained in each of the computed match vectors as the result to the client application for enabling the client application to identify assignments of the data records and the score values of matching condition table rows.