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
- Examine the data fr
- Examine the descrip
- Which four statement
- Mary has a view cal
- Which four are valid
- Which two statements
- What is true about s
- You need to perform
- Which SQL statement
- You want to display
- The CUSTOMERS table
- Examine the SQL sta
- What is true about s
- What is necessary fo
- Examinethedatafromth
- What is true of usin
- Evaluate these two
- From SQL*Plus, you
- Which SQL statement
- Which statement adds