The idea of a Virtual Chemical Stores, VCS, was introduced to describe a chemical data warehouse in which data, from a whole collection of chemical structure containing sources, were merged into a common format for ease of searching. The thor/merlin version has been available for some time, but the release of Daylight 4.82 sees the introduction of tools to run within DayCart^™ to help users build such a data warehouse within the Oracle environment.

Whilst the original concept was aimed at storing data from external compound suppliers, it equally can be applied to any database containing structures and data about those structures. Such an example database would be the NCI Aids database. An example of how to build a version of this database within DayCart^™ is described .

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