Answer:
The diagram of the ER and depreciation is in the attachments.
Without a/an Operating system. a computer is useless
Answer:
The SQL query is used to create a copy of a table like the 1_employee table in the SQL database.
Explanation:
create table copy_of_employees as select EMPLOYEE_ID, FIRST_NAME, LAST_NAME, DEPT_CODE, HIRE_DATE, CREDIT_LIMIT, PHONE_NUMBER, MANAGER_ID from l_employees;
INSERT INTO copy_of_employees SELECT * FROM l_employees;
SELECT * FROM copy_of_employees;
This SQL creates a table called copy_of_employees and copies the selected query of the 1_employees table and inserts it to the newly created table.
