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Describe different steps of the object-oriented design process.
The broad steps of the object-oriented design process are:
a. Define context and modes of use of the system
b. Design system architecture
c. Recognize the principal system objects
d. Identification of the concurrency in problem
e. Handling the boundary condition
f. Developing design models
g. Specify the object interfaces.
1. Staff (staffID --> availabilityID) 2. Services (servicesID --> itemBasedID --> timedBasedID) 3. TimedBased (timedbasedID--> priceid) 4. Clients (clientId, serviceId-->
growing phase and shrinking phase are disjoint, why ?
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
Example- Search the salary of employees who are not 'ANALYST' but get a salary below than or equal to any people employed as 'ANALYST'. SELECT EMPNO, ENAME, JOB, SAL FROMEMP
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
Project Description: The work is about founding the best skilled person for the job. I will give you the job description. Skills required are Data Entry, Database Administrat
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
Use Delegation to Share Implementation The delegation " Delegation comprises of catching an operation on one object and sending it to other object which is part, or related to
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