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Determine the method of Choosing Algorithms
In general, most of operations are easy and have a satisfactory algorithm since description of what is to be done also shows how it is to be done. Most of operations in object link network simply traverse to get back or change attributes or links. Non-trivial algorithms are normally required for two reasons:
i) If no procedural specification is given for the functions
ii) If a simple but useless algorithm serves as a definition of function.
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
Although, the essential features of E-R diagrams are enough to design many database situations. Though, with more difficult relations and advanced database applications, it is need
In tuple relational calculus P1 → P2 is equivalent to ? A In tuple relational calculus P1→ P2 is equivalent to ¬P1 V P2. (The logical implication expression A B, meaning
Benefits of Hashed file Organisation 1. Insertion or search on hash-key is quick. 2. Best if equality search is required on hash-key. Drawbacks of Hashed file
1. Create a subroutine that does the remote blast on the file protein.fa. 2. Pass that returned files from the blast to another subroutine that parses the output and sends it to
Find a 3NF decomposition of the following relation scheme: University (Faculty, Dean, Department, Chair, Professor, Rank, Student}. The University relation satisfies the following
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
note on hashing technique
Consider the 1ollowin8 relation: CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., crui
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