Although the major source of semistructured data is WWW and therefore the representation of data cannot be controlled by any
single site, in many cases the data are replicated and stored locally in a database to support sophisticated query processing.
To date a number of approaches to store data in relations were proposed. In this paper we present an analysis of alternative
mapping schemes.
This work was supported in part by RFBR (grant 98-01-00436) and INTAS (grant OPEN-97-11109).