Abstract: A flexible database and iterative spatial search process is described. In an embodiment, a flexible database server is described which takes input queries in the form of XML strings describing a search specification and parses them using a stored procedure. Searching is performed by generating a temporary table for each term in the search specification and then comparing the temporary tables to pre-existing tables within the database to identify datasets that meet the search specification. An application is also described which generates the XML string in response to user input and which displays the results to a user. The application provides a user interface which enables users to select attributes of results, such as the spatial data associated with a dataset, to include in a second search specification and to trigger this new search.

Abstract: A flexible database and iterative spatial search process is described. In an embodiment, a flexible database server is described which takes input queries in the form of XML strings describing a search specification and parses them using a stored procedure. Searching is performed by generating a temporary table for each term in the search specification and then comparing the temporary tables to pre-existing tables within the database to identify datasets that meet the search specification. An application is also described which generates the XML string in response to user input and which displays the results to a user. The application provides a user interface which enables users to select attributes of results, such as the spatial data associated with a dataset, to include in a second search specification and to trigger this new search.