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Define raid? Briefly explain it?
A range of disk organization methods, collectively called redundant arrays of independent disks (RAID)
o Improvement of reliability through redundancy.
o Improvement in performance thorugh parallelism
1. Bit level striping
2. Block level striping
RAID levels
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
Package classes and associations into models Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful part
Create Student DB and execute Insert query? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
i need to submit in this topic.
what is 3nf
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
Where does view definition stored? A view definition is permanently stored as part of the database.
Why is need for the multiple access paths?
how the string works as keyword?
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