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Illustrate how you can use QBE to perform logical AND and OR operation
Describe sequential file organization. Explain the rules for (i) Inserting a new record. (ii) Deleting an existing record. Ans:A sequential f
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the delet
About Attribute inheritance
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
1.Why we need data mining? Give an example to illustrate your answer. 2. Why data mining is considered as "misleading name"? 3. Distinguish the difference between database an
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
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