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Does adding fields to a database take up any room, even if I don't put any data in the new fields?
Adding extra fields does take up space even if the fields are empty. To be precise each text field takes up a minimum of 4 bytes, so if you have 10,000 records and you add 50 new, but blank, text fields, you've bumped up your database size by 4 bytes per blank text field times 10000 fields times 50 text fields which is 2 megabytes. For more information on the space taken up by the various field types, please see our About Field Types help topic.