Description of the illustration to_approx_percentile.eps
TO_APPROX_PERCENTILE(detail, expr, 'datatype' [, { 'DESC' | 'ASC' | 'ERROR_RATE' | 'CONFIDENCE' } ])
TO_APPROX_PERCENTILE(detail, expr, 'datatype' [, { 'DESC' | 'ASC' | 'ERROR_RATE' | 'CONFIDENCE' } ])