Answer Posted / vetrivel

VARCHAR:
Stores strings of variable length.
The length parameter specifies the maximum length of the strings
It stores up to 2000 bytes of characters
It will occupy space for NULL values
The total length for strings is defined when database was created.
VARCHAR2:
Stores strings of variable length.
The length parameter specifies the maximum length of the strings
It stores up to 4000 bytes of characters
It will not occupy space for NULL values
The total length of strings is defined when strings are given.

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