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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Describe association design of an object by giving one suitable example of it. The Design of Associations Associations are "glue" of advanced object oriented analysis and
The following data are required to be stored by a family physician. Family#, FamilyAddress, Patient#, PatientName, ServiceCode, ServiceFee, ServiceDate A family can have seve
Describe briefly models which define the operations on classes. The three models which are used to define operations on classes are as: Object Model = data dictionary + Obje
Explain ER Relationship model? An entity-relationship model (ERM): An entity-relationship model (ERM) is an abstract theoretical illustration of structured data. Entity-relatio
Express the subsequent query in SQL assumes which the data is stored within EMPLOYEE table with relevant fields (i) Display name, job, salary, and hire date of employee who are
Whst is logical schema ? Logical schema is the entire database.
what is er digram given that example of hospital,bank and library er digram.
Can we delete data element, which is being used by table fields. No we cant delete data element.
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
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