试题详情
- 单项选择题 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
关注下方微信公众号，在线模考后查看
热门试题
- Which three are true
- Examine the descrip
- Which two are true a
- Which two tasks can
- Evaluate this SQL s
- Examine the structu
- The STUDENT_GRADES
- Which four are corre
- The user Sue issues
- You need to modify t
- EvaluatethisSQLstate
- Examine these state
- Which SQL statement
- In a SELECT statemen
- Which two statements
- For which action can
- You need to produce
- You need to create a
- You added a PHONE_N
- You added a PHONE_NU