多项选择题
Examine the data in the EMPLOYEES table:
LAST_NAME DEPARTMENT_ID SALARY
Getz 10 3000
Davis 20 1500
Bill 20 2200
Davis 30 5000
...
Which three subqueries work? （）
A. SELECT * FROM employees where salary > (SELECT MIN(salary) FROM employees GROUP BY department _ id);
B. SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);
C. SELECT distinct department_id FROM employees Where salary > ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);
D. SELECT department_id FROM employees WHERE SALARY > ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);
E. SELECT last_name FROM employees Where salary > ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);
F. SELECT department_id FROM employees WHERE salary > ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));
相关考题
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单项选择题
You need to give the MANAGER role the ability to select from, insert into, and modify existing rows in the STUDENT_GRADES table. Anyone given this MANAGER role should be able to pass those privileges on to others.Which statement accomplishes this?（）
A.GRANT select, insert, update ON student_grades TO manager
B.GRANT select, insert, update ON student_grades TO ROLE manager
C.GRANT select, insert, modify ON student_grades TO manager WITH GRANT OPTION;
D.GRANT select, insert, update ON student_grades TO manager WITH GRANT OPTION;
E.GRANT select, insert, update ON student_grades TO ROLE manager WITH GRANT OPTION;
F.GRANT select, insert, modify ON student_grades TO ROLE manager WITH GRANT OPTION; -
多项选择题
Examine the data in the EMPLOYEES table: Which three subqueries work?（）
A.
B.
C.
D.
E.
F.
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多项选择题
Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) Which three statements inserts a row into the table? （）
A. INSERT INTO employees VALUES (NULL, 'JOHN','Smith');
B. INSERT INTO employees( first_name, last_name) VALUES ('JOHN','Smith');
C. INSERT INTO employees VALUES ('1000','JOHN','NULL');
D. INSERT INTO employees(first_name,last_name, employee_id) VALUES ('1000, 'john','Smith');
E. INSERT INTO employees (employee_id) VALUES (1000);
F. INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'john',");
