Question

What is the difference between the Char and VarChar data types?

1) Char data type is used to store fixed-length character strings, while VarChar data type is used to store variable-length character strings.
2) Char data type is used to store variable-length character strings, while VarChar data type is used to store fixed-length character strings.
3) Char data type is used to store numeric values, while VarChar data type is used to store character strings.
4) Char data type is used to store character strings, while VarChar data type is used to store numeric values.

Answer 1

The Char data type is for fixed-length character strings while VarChar is for variable-length strings. Char always uses the specified space, whereas VarChar uses only the needed space for characters entered.

Step-by-step explanation:

The difference between the Char and VarChar data types is that:

• Char data type is used to store fixed-length character strings.
• VarChar data type is used to store variable-length character strings.

Thus, the correct answer to your question is 1) Char data type is used to store fixed-length character strings, while VarChar data type is used to store variable-length character strings. Char reserves space for the specified number of characters even if the actual character string is shorter, consistently using the amount of space defined. On the other hand, VarChar only uses as much space as needed for the actual characters entered, up to the maximum specified, and can save storage space if characters in the string are frequently less than the maximum defined.