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Which component is not included in database environment ? A users component is not included in database environment.
Outer Join: The use of Outer Join is that it still joins those tuples that do not have matching values in common columns are also contained in the result table. Outer join places
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
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 c
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
explain multi key file organisation
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
Which language used in application programs to request data from the DBMS is referred? Language which is used in application program is DML to request data from the DBMS is ref
3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R
define locking in simple language and decribed it
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