BOTTOM_PERCENT_RECORDS Function
Syntax
Arguments
- Filter_Expression
A character filter expression that selects records from a table. Numeric
- percent
A positive number less than or equal to 100. Numeric
- filter
Optional. A character filter expression that evaluates to a logical value and selects records from the table.
Description
Return the bottom N percent of records for a given sort order.
Discussion
BOTTOM_PERCENT_RECORDS() is a special function used only in queries to return the bottom Percent of records in a table for a given sort order. If the optional filter is supplied, only the records selected by the filter are returned. Note : The term "bottom" does not imply that record values are examined. "Bottom" means last, given the current sort order.
Example
See Record Sampling Functions for more information. The following query, which could be attached to a button on a form, returns the bottom 10% of students in a school.
dim tbl as P dim inx as P tbl = table.current() query.filter = "bottom_percent_records(10)" query.order = "grade_point_average" inx = tbl.query_create() topparent.resynch()
See Also