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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Briefly explain each of the following database terms. Use no more than 2-3 lines for each term. 1. DBMS 2. Update Anomaly 3. Alias (referring to tables in SQL queries)
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
The technique of converting the state diagram to code a) Identify all major control paths. Start from initial state; choose a path across the diagram that corresponds to normal
Using a database design approach of your choice, produce a logical design for Pharma. 1) Your answer must consist of ONE the following: An entity-relationship (ER) diagra
waht is a repeating group?
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
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