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Question ID 1704

Which SQL statement accepts user input for the columns to be displayed, the table name, and the WHERE condition?

Option A

A.    SELECT &1, &2
FROM &3
WHERE last_name = '&4';

 

Option B

B.    SELECT &1, '&2'
FROM EMP
WHERE last_name = '&4';
 

Option C

C.    SELECT &1, "&2"
FROM &3
WHERE last_name = '&4';
 

Option D

D.    SELECT &1, '&2'
FROM &3
WHERE '&last_name = '&4";

Correct Answer A
Explanation


Question ID 1705

Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER NOT NULL
EMP_NAME VARCHAR2(30) JOB_ID VARCHAR2(20) SAL NUMBER
MGR_ID NUMBER
DEPARTMENT_ID NUMBER
You want to create a SQL script file that contains an INSERT statement. When the script is run, the INSERT statement should insert a row with the specified values into the EMPLOYEES table. The INSERT statement should pass values to the table columns as specified below:
EMPLOYEE_ID: Next value from the sequence EMP_ID_SEQ
EMP_NAME and JOB_ID: As specified by the user during run time, through substitution variables
SAL: 2000
MGR_ID: No value
DEPARTMENT_ID: Supplied by the user during run time through substitution variable. The INSERT statement should fail if the user supplies a value other than 20 or 50.
Which INSERT statement meets the above requirements?
 

Option A

A.    INSERT INTO employees
VALUES (emp_id_seq.NEXTVAL, '&ename', '&jobid',
2000, NULL, &did IN (20,50));
 

Option B

B.    INSERT INTO (SELECT *
FROM employees
WHERE department_id IN (20,50))
VALUES (emp_id_seq.NEXTVAL, '&ename', '&jobid', 2000, NULL, &did);
 

Option C

C.    INSERT INTO (SELECT *
FROM employees
WHERE department_id IN (20,50)
WITH CHECK OPTION)
VALUES (emp_id_seq.NEXTVAL, '&ename', '&jobid', 2000, NULL, &did);
 

Option D

D.    INSERT INTO (SELECT *
FROM employees
WHERE (department_id = 20 AND
department_id = 50)
WITH CHECK OPTION )
VALUES (emp_id_seq.NEXTVAL, '&ename', '&jobid', 2000, NULL, &did);
 

Option E

E.    INSERT INTO employees
VALUES (emp_id_seq.NEXTVAL, '&ename', '&jobid', 2000, NULL, &did);
 

Correct Answer C
Explanation

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