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| Class Summary | |
| DBMAccess | |
| DBManager | The lowest layer of the DB connection, right above the ODBC driver. |
| DBMOracle | |
| ISQuery | Class that encapsulates data we need to create and manipulate SQL queries on. |
| QueryEngine | |
| Table | this class holds a number of tuples together with a Relation object in the MKB to form a relation extent. |
| Tuple | this class holds a tuple in a relation object. |
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