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Demonstrate the UML model
Using UML, it is possible to generate code in any of the programming language from UML model (called forward engineering) and rebuild a model from an implementation into UML (called reverse engineering) as show in the Figure given below.
Figure: The relationship between models and code
What is called an evaluation primitive? A relational algebra operation annotated with instructions on how to evaluate is known as an evaluation primitive.
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
Control Files : The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard
Define shadow paging. An alternative to log-based crash recovery method is shadow paging. This technique requires fewer disk accesses than do the log-based methods.
Explain the integrity constraints: Not Null, Unique, Primary Key with an example each. Is the combination 'Not Null, Primary Key' a valid combination. Justify. Not Null - Shou
what do you mean by consistency in rdbms?
Control as Concurrent Tasks The expression control as simultaneous task means applying control for those events of object which can happen simultaneously. An object can be imp
Explain about database system structure? Storage manager Authorization and integrity manager Transaction manager File manager Buffer manager Storage manager
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
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