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What is primary Key Explain?
Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, changed.
Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
Question 1 Explain the functions of the following Storage Manager Buffer Manager Transaction Manager 2 Discuss about system catalog in a relational DBMS 3
Benefits and limitations
what is natural join?
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Limitations of File Based System The file-based system has some limitations. The limitations are listed as follows: Isolation and separation of data: When the data is
Define physical image of a global relation at a site
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
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
What are the various properties of Relational tables? Relational tables have 6 properties: 1. Each row is unique. 2. Column values are of the same kind. 3. Values are
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