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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which four are types of functions available in SQL? (Choose 4)

A) integer
B) conversion
C) character
D) calendar
E) date
F) numeric
G) string
H) translation

2. Which three statements about subqueries are true? (Choose three)

A) A single row subquery can retrieve only one row but many columns.
B) A single row subquery can use the IN operator.
C) A multiple row subquery can be compared by using the ">" operator.
D) A single row subquery can retrieve only one column and one row.
E) A multiple row subquery can use the "=" operator.
F) A multiple row subquery can retrieve multiple rows and multiple columns.

3. Which two tasks can your perform by using the TO_CHAR function? (Choose two)

A) Convert 'TEN' to 10
B) Convert a character expression to a date
C) Convert 10 to 'TEN'
D) Convert '10' to 10
E) Convert 10 to '10'
F) Convert a date to a character expression

4. Examine the structure of the EMPLOYEES table:

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: Which INSERT statement meets the above requirements?

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

5. A data manipulation language statement _____.

A) modifies the structure and data in a table
B) completes a transaction on a table
C) modifies the structure but not the data of a table
D) modifies the data but not the structure of a table

Solutions: