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choice of length of a varchar

427838Jul 7 2005 — edited Jul 11 2005

Hi,
I would like to know if the choice of a length of a field when creating a table will influence the space of the database?
By example, if I know that I will only have strings of max 20 chars and I create a field with varchar2(255) rather than varchar2(20) in a table. Will it influence the database size on disk if I enter a lot of entries?

Thank you,
Mathieu

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Locked on Aug 8 2005

Added on Jul 7 2005

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