Set the Condition and scope for an order
ORDCONSET([<cForCondition>], [<bForCondition>], [<lAll>], [<bWhileCondition>], [<bEval>], [<nInterval>], [<nStart>], [<nNext>], [<nRecord>], [<lRest>], [<lDescend>], [<lAdditive>], [<lCurrent>], [<lCustom>], [<lNoOptimize>])
<cForCondition> is a string that specifies the FOR condition for the order.
<bForCondition> is a code block that defines a FOR condition that each record within the scope must meet in order to be processed. If a record does not meet the specified condition, it is ignored and the next record is processed.Duplicate keys values are not added to the index file when a FOR condition is Used.
Library is rdd