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Illustrate the collaboration and relationship diagram
A collaboration is the society of interfaces, classes and other elements which work together to provide some cooperative behaviour which is bigger than the sum of its parts.
A relationship is a connection between things. In object models, common types of relationships are dependency, inheritance, containment, aggregation, association, generalisation and realisation. The notation for relationship among use cases is shown as:
Figure: Relationship between different use cases
what should be included in this???
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
Q. With the help of a suitable diagram gives module wise explanation of system architecture of DBMS. Sol. A Database management is a collection of interrelated data and col
what are information system hirarchy?
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
Explain the challenges before an E-business management.
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
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