At&t Intellectual Property I, LP

Ioannis Velegrakis

Divesh Srivastava

Ioannis Kotidis

Method and apparatus for associating at least one query expression to an original database table is described. In one example, a metadata table is added to a database, wherein at least one portion of the metadata table comprises the at least one query expression. Afterwards, the at least one query expression is associated to at least one value from at least one tuple belonging to a data table of the database.

Method and apparatus for associating metadata with data

A method and system are disclosed that allow database views and base tables to be treated identically with respect to queries, insertions, deletions and updates. The method and system include separating the data instance of a view into a logical data instance and a physical data instance. The physical data instance is extended to include identifiers on data values that are used to query insert, delete and update information in base tables. The manner in which users and applications interface with the view remains unchanged since those interactions occur at the logical level.

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Trento, Italy

Ioannis Velegrakis