Oracle Academy Test: Final Exam Semester 2 - Part I (1-10)

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Oracle Academy Test: Final Exam Semester 2 - Part I (1-10)

Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer.

Section 8
(Answer all questions in this section)

Part I of the Semester 2 Final Exam covers Sections 8-9 of Database Programming with SQL.

1. Which of the following SQL statements will create a table called Birthdays with three columns for storing employee number, name and date of birth? 
(1) Points

CREATE table BIRTHDAYS (EMPNO, EMPNAME, BIRTHDATE);

CREATE table BIRTHDAYS (employee number, name, date of birth);

CREATE TABLE Birthdays (Empno NUMBER, Empname CHAR(20), Birthdate DATE); (*)

CREATE TABLE Birthdays (Empno NUMBER, Empname CHAR(20), Date of Birth DATE);


2. Which statement about table and column names is true? 

(1) Points

Table and column names must begin with a letter. (*)

Table and column names can begin with a letter or a number.

Table and column names cannot include special characters.

If any character other than letters or numbers is used in a table or column name, the name must be enclosed in double quotation marks.


3. Evaluate this CREATE TABLE statement:

1. CREATE TABLE customer#1 (

2. cust_1 NUMBER(9),

3. sales$ NUMBER(9),

4. 2date DATE DEFAULT SYSDATE);

Which line of this statement will cause an error? 

(1) Points
1

2

3

4 (*)


4. You are creating the EMPLOYEES table. This table should contain the COMMISSION_PCT column and use a value of 10 percent if no commission value is provided when a record is inserted. Which line should you include in the CREATE TABLE statement to accomplish this task?
(1) Points

commission_pct NUMBER(4,2) DEFAULT 0.10 (*)

commission_pct NUMBER(4,2) DEFAULT = 0.10

commission_pct NUMBER(4,2) DEFAULT (0.10)

commission_pct NUMBER(4,2) (DEFAULT, 0.10)


5. Which CREATE TABLE statement will fail?

(1) Points

CREATE TABLE date_1 (date_1 DATE);

CREATE TABLE date (date_id NUMBER(9)); (*)

CREATE TABLE time (time_id NUMBER(9));

CREATE TABLE time_date (time NUMBER(9));

6. Which column name is valid? 
(1) Points

1NUMBER

NUMBER

NUMBER_1$ (*)

1_NUMBER#


7. You are designing a table for the Human Resources department. This table must include a column that contains each employee's hire date. Which data type should you specify for this column? 

(1) Points

CHAR

DATE (*)

TIMESTAMP

INTERVAL YEAR TO MONTH


8. Which data types stores variable-length character data? (Select two).
(1) Points
(Choose all correct answers)

CHAR

NCHAR

CLOB (*)

VARCHAR2 (*)


9. You need to store the HIRE_DATE value with a time zone displacement value and allow data to be returned in the user's local session time zone. Which data type should you use? 
(1) Points

DATETIME

TIMESTAMP

TIMESTAMP WITH TIME ZONE

TIMESTAMP WITH LOCAL TIME ZONE (*)


10. The ELEMENTS column is defined as:
NUMBER(6,4)
How many digits to the right of the decimal point are allowed for the ELEMENTS column? 
(1) Points

Zero

Two

Four (*)

Six

Oracle Academy Test: Final Exam Semester 2 - Part I (1-10)