The present invention provides for indexing of occurrences of a value in at
least one data record using a bit vector wherein a bit vector is
associated with the value and a bit of the bit vector representation is
associated with the at least one data record, a determination is made
whether the value exists in the at least one data record, a bit value is
assigned to the bit in the bit vector representation based on the outcome
of the determination. Further, operations may be performed on multiple bit
vectors indexing data records and values used in the data records to
determine the existence of combinations and associations between the
corresponding values and the indexed data records.
