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Graphics Interchange Format  |  1998-06-08  |  33.7 KB  |  439x305  |  4-bit (16 colors)
   ocr: Figure 3. The Persistent Griteria Class Hierarchy OM Persistent Criteria Selection Criteria abstract abstract tarclass attribute . ISSubclassesincluded value addSelectXxx0): asSglCiausel) addurCriteriat perform() XXX critera assalclaused) Retrieve criteria Dalete criteria Update Criteria Cursor creates returnype markForDeletion(: attributevalues - asCursor) permanentyleleted performi) asProxiest addAttributel) asRows0) creates 0.1 asûbjects0) 0.1 creates