Difference between revisions of "MAXVALUES()"

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==Class==
 
Fields and Records
 
  
  

Revision as of 15:10, 28 October 2009


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(), 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 Database Server, Recital Mirage Server, Recital Terminal Developer