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Assuming that all the tables have been created as given in the relational schema, write SQL code to make the following changes in the structure of the tables:
(i) Make the employee_id the Primary Key of the EMPLOYEES table
(ii) Make the department_id and the manager_id the foreign key of the Employee table assuming that the department_id has been declared as the primary key of the DEPARTMENTS.
(iii) Add a check constraint in the Job_History table so that the end_date will always be greater than the start_date.
(iv) Add a unique constraint in the Employee table so that each employee will have a unique email address.
Explain the design steps of the transform mapping. Review the fundamental model. Review and refine the DFD for the software. Verify whether the DFD has the transf
Verification or validation performed which implements the system's code.
The most important feature of spiral model is Risk management is the important feature of spiral model.
A walk-through is an informal meeting for informational purposes or evaluation.
algorithums
Documentation specifying the scope, approach, resources, and schedule of intended testing activities. It signifies test items, the features to be tested, the testing tasks, respons
What is function point? Function point measures the functionality from the user point of view, that is, on the basis of what the user request and receives in return. Therefore
Q. A supermarket requires to develop software to encourage regular customers. For this the customer requires to supply his name address telephone number and driving license number.
Define debugging. Debugging is defined as the process of removal of defect. It occurs as a consequence of successful testing.
Illustrate the example of Data dictionary of payroll Data dictionary of payroll may include below fields: PAYROLL = [Payroll Details] = @ employee name + employee + id
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