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In case of entity integrity, the primary key may be declared?
In a case of entity integrity primary key may be not Null.
explain in detail about crash recovery
Which method of access uses key transformation? A Hash method of access uses key transformation.
ERD Diagram of Medical Recruitment Agency?
What is System R? What are its two major subsystems? System R was intended and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its pur
Prove that a relation which is 4NF must be BCNF. Ans Let R be in 4NF. Suppose it is not in BCNF. Hence, there exists an FD X→Y in R such that x is not a super key. Although
1) 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 pict
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Express types of information available in MySQL? Information as regards the result of queries: This includes number of records affected by any SELECT or UPDATE or DELETE st
What is an Operand? The data on which the operation is to be performed is known as an Operand
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
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