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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.
Software Engineering A high technology system encompasses a number of elements like people, hardware, software, database, documentation, and process. System engineering
Describe component testing. - Component testing is also called as module, unit or program testing. - It looks for defects in software and verifies its functioning. - It c
Testing conducted to evaluate whether systems or components pass data and control correctly to one another. Contrast with testing, unit; testing, system. Normal 0
How will you view GUI maps in Winrunner? - GUI maps are viewed by using GUI Map Editor - It's located in Tools menu within WinRunner. - It displays all of the GUI Map fil
Question: (a) Explain the difference between a link and an association. Use a simple example to illustrate your answer. (b) Briefly describe the importance of CRC cards in
What are the various testing strategies for conventional software? i. Unit testing ii. Integration testing. iii. Validation testing. iv. System testing.
It is possible to assign a local data object defined in a subroutine or function module to a field group. False.
What are the merits of incremental model? i. The incremental model can be adopted when there is less number of people included in the project. ii. Technical risks can be man
desidn a complete flow chart diagram ,which ask the user to input the rate of diesel and quantity of diesel consumed.after calculate the total amount of diesel consumed and display
What is DFD? Data Flow Diagram depicts the information flow and the transforms that are applied on the data as it moves from input to output.
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