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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Locks: Serialisabilty is just a test whether a given interleaved schedule is ok or has a concurrency related trouble. Though, it does not make sure that the interleaved concurrent
It is not possible to make an ABAP/4 program, which having only Subroutines. False. We can make ABAP/4 program, which having only Subroutines.
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
sql is relationally complete-justify
how many hourse have been spent on a certain project
What is a hashing function? What are the properties of a good hashing function? Describe the folding technique for hashing functions. Ans: Hashing function is a method
What is the use of group by clause? Group by clause is used to be relevant aggregate functions to a set of tuples. The attributes given in the group by clause are used to shape
Update or Modify operation alters the existing values. If these operations alter the value that is the foreign key also, the only check need is the similar as that of the Insert op
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