<forward-only-result-set>

Abstract class

Summary

The class for result sets that support a one-shot forward iteration protocol.

Superclasses:

<result-set>

Library

sql

Module

sql

Description

Instances of this class represent the results of an SQL SELECT statement, and support a one-shot forward-iteration-protocol. By one-shot, we mean each element of the collection can be visited only once, and no previously visited element can be revisited. A condition is signaled if the application tries to revisit a record. Thus, backward-iteration-protocol is not supported on this collection.

This collection class is useful when the result of a query is large and each element can be processed individually.

The function type-for-copy returns <simple-object-vector> when applied to objects of this class.

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OLE, COM, ActiveX and DBMS Reference - 31 MAR 2000