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How will you differentiate between VARCHAR & VARCHAR2?

Answer: Both VARCHAR & VARCHAR2 are Oracle data types that are used to store character strings of variable length. Their differences are:

  • VARCHAR can store characters up to 2000 bytes while VARCHAR2 can store up to 4000 bytes.
  • VARCHAR will hold the space for characters defined during declaration even if all of them are not used whereas VARCHAR2 will release the unused space.

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