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explain normalisation
Gaps in sequence values can happen when: - A rollback happens that is when a statement changes are not accepted. - When the system crashes - When a sequence i
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
what is Mapping Constraints? with examples
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
Consider a research paper submission process. The process starts when an author submits a draft research paper (the paper may have up to 3 authors) to the chair of the organizing c
what are the type of the database
examples of fields in a database
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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