running-total

Returns a running total by row (including the current row) for a set of values. The "<for-option>" defines the scope of the function. The "at" option defines the level of aggregation and can be used only in the context of relational datasources.

Syntax

running-total ( numeric_expression [ at expression { ,
 expression } ]  [ <for-option> ] [ prefilter ] )
running-total (  numeric_expression [ <for-option> ] [ prefilter ] )
<for-option> ::= for expression { , expression }|for report|auto

Example

running-total ( Qty )

Result

For each row, returns the quantity and a running total of the current and previous rows.

Result data

Name Qty Total Running-Total (Qty) for name
Smith 2 18 2
Smith 3 18 5
Smith 6 18 11
Smith 7 18 18
Wong 3 12 3
Wong 5 12 8