If the operator is AND-NOT, S is the set of elements in S1 which are not in S2. Each entry in R1 and R2 contain positional information, in the form of position vectors. For each record represented by both R1 and R2, consider every ordered pair consisting of a position vector associated with the record as represented in R1 and a position vector associated with the record as represented in R2. An intermediate result set is created, which represents the records in the set S, and is put on the stack. Difference between the ordinal positional values of the two operands.
Distance is never negative.
Character, Word, Sentence, Paragraph, Section, Chapter, Document, Element, Subelement, ElementType, Byte, or a privately defined unit. Then the result is the set of records in which both of the personal names occur within the same paragraph. Using the same example, if the Exclusion flag is set to 'true,' the result is the set of records in which the two personal names never both occur within the same paragraph. In the extended result set model for proximity, the target maintains positional information, in the form of one or more position vectors, associated with each record represented by the result set, which may be used in a proximity operation as a surrogate for the search that created the result set. The manner in which the target maintains this information is not prescribed by the standard.