#include <DbXml.hpp>

bool XmlResults::previous(XmlValue &value);
bool XmlResults::previous(XmlDocument &document);

Retrieves the previous value in the result set. When the first value in the results set has been reached, the XmlResults::previous method returns false. In an eager results set the iterator logically points "between" adjacent entries which means that alternating calls to previous() and next() will return the same value.

• The XmlValue into which the previous value in the result set is to be placed.

• The XmlDocument into which the previous document in the result set is to be placed.

The XmlResults::previous method may fail and throw XmlException, encapsulating one of the following non-zero errors:

• The method can only be called on eagerly evaluated result sets.