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What was the method in which records are physically stored in a specified order according to a key field in each record ?
A method in which records are physically stored within a specified order according to a key field in every record is hash. (In hash method, a hash function is performed on the key value to determine the unique physical address of the record to store or retrieve)
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
Fragmentation: It is definite as partitioning of a relation into various fragments.Every fragment can be stored at a dissimilar site.
draw ER diagram of student entity and course entity where attribute of student entity are student roll, student name, student phone and student address and attribute of course enti
Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? Question 2 With a necessary example explain (i)
#questiontypes of keys examples..
#question.explain diversity and magnitude of organic compounds and general properties?
explain concept of decomposition?
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
complete er diagram of textile industry management
Consider the relation schemas as follows. works (person name, company name, salary); lives (person name, street, city); located in(company name, city); managers (person name
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