What Information is Stored in Computer Databases and What Types of Searches may be Performed?
The simple answer to the above question is ‘it depends on which database your using’. However, in general most databases which store information on the primary literature store, and can be search on, bibliographical information, titles, keywords, sometimes abstracts, and in some rare cases the texts of the papers themselves. Other databases which store chemical information, may hold various information on physical properties, reactions, biological properties and synthetic procedures. As mentioned above, some databases (including CA) can now be searched using chemical structures rather than words. In these cases you need to construct a chemical structure (which may be via a graphics package or a complex language) and submit this as the search criteria. This type of searching overcomes the problems associated with nomenclature. However the real power of structural searching is the ability to perform ‘substructure’ searching (SSS). Imaging trying to find references which deal with the fol
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