Re: Does a blank field take up disk space?

From: Jerry Stuckle <jstucklex_at_attglobal.net>
Date: Fri, 29 Jul 2016 14:19:06 -0400
Message-ID: <nng6md$49q$1_at_jstuckle.eternal-september.org>


On 7/29/2016 1:06 PM, bit-naughty_at_hotmail.com wrote:
> On Friday, July 29, 2016 at 9:14:57 PM UTC+5:30, The Natural Philosopher wrote:

>>>
>> https://dev.mysql.com/doc/internals/en/myisam-introduction.html
>> https://dev.mysql.com/doc/internals/en/innodb-field-contents.html

>
> From the second link:
> "And the row is shorter because the NULLs take no space. " - that seems to conflict with what Jerry Stuckle is saying....?
>

That is true for a VARCHAR field - but not fixed length fields. You asked about PRICE - which would typically be a numeric field, not VARCHAR.

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Jerry Stuckle
jstucklex_at_attglobal.net
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Received on Fri Jul 29 2016 - 20:19:06 CEST

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