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Problem:
a) Briefly describe what you understand by Client-Server environment
b) The File Server is a simple form of Client-Server. Describe the principles of the File Server and discuss its limitations
c) What is a 3-Tier architecture, and what are the benefits of setting up one.
If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
What is meant by functional dependencies? Consider a relation schema R and α C R and β C R. The functional dependency α ->β holds on relational schema R if in any legal relati
Hierarchical
#question. acompani datdbase needs to store information about employees (identified by a social security number,with salary and phone as attributes) and departments (identified by
Explain the systems development life cycle. This is the traditional method to develop, maintain, and replace information systems that contains the project identification and se
what are the states of transaction?
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
A step-wise distributed database design methodology Following is a step-wise methodology for distributed database design. (1) Examine the nature of distribution. Find out wh
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
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