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under what condition log based recovery is feasible?
What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it
Give some encryption techniques? A) DES B) AES C) Public key encryption
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
I need to Map an E-R diagram to a relational schema
In which format database schema is written ? Data base schema is written in the DDL format.
why shadow copy technique is used?
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
Suppose an instruction takes 1 nanosecond to execute (on average), a page fault takes 20 microseconds of processor time, and it takes 300 microseconds of disk time to read or write
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