28. The database system of claim 27 , wherein at least one of the specified percentage and specified number are variables.
27. The database system of claim 26 , further comprising: means for determining whether more than a specified percentage of requested cells can be retrieved more efficiently using a specific query language selected from the set of query languages; and means for determining whether less than a specified number of queries are needed to obtain the desired information, wherein at least one of the selection of query languages and the number of queries formed is based at least in part on at least one of the specified percentage and the specified number.