Updating inverted file index using multi tier
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Note: Fixes previously available in Cognos BI 10.2.1 FP1 Feature Bundle are included in Cognos BI 10.2.1 FP3.
If the view and the controller objects are combined, the result is the model/view architecture.
This still separates the way that data is stored from the way that it is presented to the user, but provides a simpler framework based on the same principles.
In a single data table we create any number of columns For eg.Qt contains a set of item view classes that use a model/view architecture to manage the relationship between data and the way it is presented to the user.The separation of functionality introduced by this architecture gives developers greater flexibility to customize the presentation of items, and provides a standard model interface to allow a wide range of data sources to be used with existing item views. A field consists of a field name that is a string and one or more field values.There are two ways to store text data: string fields store the entire item as one string; text fields store the data as a series of tokens.