Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMPLOYEES e, DEPARTMENTS d WHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID; In the statement, which capabilities of a SELECT statement are performed?()
- A、selection, projection, join
- B、difference, projection, join
- C、selection, intersection, join
- D、intersection, projection, join
- E、difference, projection, product
正确答案:A
答案解析:有
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