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Explain Alternate key?
Alternate Key - All the candidate keys except primary key are known as alternate keys.
write short note on mobile database
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
what is Mapping Constraints? with examples
#ques Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a p
please give me introduction to full data in D B M S in a short assignment
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
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 domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken fro
what is attribute is attribute inheritance in dbms?
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