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How does the system cope up with a record crash when recovery is going on after the first crash?
Ans: In a system the undo and redo operations are needed to be idempotent to cope up with a record crash while recovery is going on after the crash. Because of the idempotent property, recovery process, whereas in the process of undoing or redoing the actions of a transaction, may fail without a trace, and this kind of failure can take place any number of times before the recovery is done successfully.
WHERE and HAVING clause in SQL ? The WHERE clause is commonly used for implementing conditions on each tuple of the relation. The HAVING clause is used in combination along wi
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
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This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
Question 1 Discuss on transmission impairments Question 2 What is framing? Question 3 Write a note on 10Base2 10Base- T Question 4 Explain the rev
This project requires you to perform a systems analysis and then design a system solution using database software. Ace Auto Dealers specializes in selling new vehicles from Subaru.
Shared lock or Read Lock It is requested by a transaction that needs to just read the value of data item. A shared lock on a data item does not permit an exclusive lock
Differentiate between natural join and outer join? Natural join is a binary operator which is written as (R * S) where as R and S are relations. The output of the natural join
difference between internal schema and external schema in DBMS
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