Database - Physical Database Design - Discussion

Discussion :: Physical Database Design - General Questions (Q.No.3)

3. 

What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?

[A]. VARCHAR2
[B]. CHAR
[C]. LONG
[D]. NUMBER

Answer: Option A

Explanation:

No answer description available for this question.

Sama said: (May 29, 2013)  
VARCHAR2 is used to store variable length character strings. The string value's length will be stored on disk with the value itself.

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