Difference between revisions of "MAXVALUES()"

Revision as of 04:43, 20 June 2010

Purpose

Function to return the maximum numeric value for a matching series of keys

Syntax

MAXVALUES(<expN> [, <for condition>[, <key expression >]])

See Also

AVERAGE, AVGVALUES(), AMAX(), AMIN(), CNTVALUES(), COUNT, MAX(), MIN(), MINVALUES(), SQLVALUES(), SUM, SUMVALUES(), ALLVALUES() , TOTAL

Description

The MAXVALUES() function returns the maximum value of the <expN> for a matching series of keys. The required <expN> parameter must be a column name from a table. If none of the optional parameters is specified, then the maximum value of keys matching the current key is returned. An optional <for condition> can be specified to restrict the rows included in the operation. You can also optionally specify a <key expression> to return the maximum value from instead of the current key.

After completion, all record pointers and indexes are returned to their original positions.

Example

use customer order title
// Maximum value of balance column for the number of records matching the current key
total_balance = maxvalues(balance) 
// Maximum value of balance column for the number of records matching the key "Mr"
m_male = maxvalues(balance, .T., "Mr")
// Maximum value of balance column for the number of records matching the current key with an expiry date < today
m_expired = maxvalues(balance, expiry<date())

Products

Recital Server, Recital