CIT 225 Final Exam 2026 | All Questions and Correct Answers | Graded A+ | Verified Answers | Updated Version

CIT 225 Final Exam 2026 | All Questions and
Correct Answers | Graded A+ | Verified
Answers | Updated Version

To convert numeric values to formatted numbers, you can use the
______________________ function. ---------CORRECT ANSWER-----------------
TO_CHAR




Which of the Following values can be stored in a column that's defined as
NUMBER(6,2), except:
- -246.29
-0
- 2479.95
- 32492.05 ---------CORRECT ANSWER-----------------32492.05




Which uses the least amount of storage?
- 'example' stored in a column of type CHAR(20)
- 'ex' stored in a column of type CHAR(20)
- they all use the same amount of storage
- 'exam' stored in a column of type CHAR(20) ---------CORRECT ANSWER---------------
--They all use the same amount of storage

, Which uses the least amount of storage?
- 'ex' stored in a column of type VARCHAR2(20)
- 'exam' stored in a column of type VARCHAR2(20)
- 'example' stored in a column of type VARCHAR2(20)
- they all use the same amount of storage ---------CORRECT ANSWER-----------------
'ex' stored in a column of type VARCHAR2(20)




The COALESCE function provides one way to substitute other values for
__________________________ values. ---------CORRECT ANSWER-----------------
Null




To model a database on a real-world system, you typically represent each real-
world entity as a/an ____________________________. ---------CORRECT
ANSWER-----------------Table




If two tables have a one-to-many relationship, you need to add a
_______________________ column to the table on the "many" side. ---------
CORRECT ANSWER-----------------Foreign Key




Each table in a database should have a _____________________________ that
uniquely identifies each row. ---------CORRECT ANSWER-----------------Primary Key