Max
Purpose
Returns the highest valid value in a field.
Format
Max(field{;field...})
Parameters
field - any
related field,
repeating field, or set of non-repeating
fields; or an
expression that returns a field, repeating field, or set of non-repeating fields.
Parameters in braces { } are optional.
Data type returned
text, number, date, time, timestamp
Originated in
FileMaker Pro 6.0 or earlier
Description
Field can be any of the following:
•a repeating field (repeatingField).
•a field in matching
related records specified by
(table::field), whether or not these records appear in a
portal.
•several non-repeating fields in a
record (field1;field2;field3...).
•corresponding repetitions of repeating fields in a record (repeatingField1;repeatingField2;repeatingField3), if the result is returned in a repeating field with at least the same number of repeats.
•several fields in the first matching record specified by
(table::field1;table::field2;...). You can include fields from different
tables (table 1::field A;table 2::field B...).
Examples
The Accounts
layout has a portal showing installment payments made.
Max(Payments::PaymentDate) returns the most recent date a payment was made on an account.
In the following examples:
•Field1 contains two repetitions with values of 1 and 2.
•Field2 contains four repetitions with values of 5, 6, 7, and 8.
•Field3 contains 6.
Max(Field2) returns 8 when the calculation isn’t a repeating field.
Max(Field1;Field2;Field3) returns 6, 6, 7, 8 when the calculation is a repeating field.
Notes
•When a referenced field is a repeating field, the Max function returns the maximum value in the first repetition field, then the maximum value in the second repetition field, and so on.
•Aggregate functions such as Min or Max use the data type of the first parameter to perform all comparisons. For example, if the first parameter’s data type is text, all other parameters are converted to text and then compared.
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