What is the difference between CHAR and VARCHAR?

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  1. CHAR and VARCHAR have differed in storage and retrieval.
  2. CHAR column length is fixed, while VARCHAR length is variable.
  3. The maximum no. of character CHAR data types can hold is 255 characters, while VARCHAR can hold up to 4000 characters.
  4. CHAR is 50% faster than VARCHAR.
  5. CHAR uses static memory allocation, while VARCHAR uses dynamic memory allocation.