Difference between revisions of "SUMVALUES()"

Revision as of 16:32, 8 December 2009

Purpose

Function to returns the total value of a column for a matching series of keys

Syntax

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

See Also

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

Description

The SUMVALUES() function returns the total value of <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 number of keys matching the current key is returned. An optional <for condition> can be specified to restrict the rows included in the sum operation. You can also optionally specify a <key expression> to perform the sum on instead of the current key.

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

Example

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

Products

Recital, Recital Server