According to _MySQL & mSQL_, by Yarger et al (O'Reilly) the TEXT
datatype holds 64KB of data.
Since my math skills and understanding of character storate are,
well...wretched, someone should check me on this:
64KB = 64000 bytes = 64,000 characters (@ 1 character/byte),
(or better than 10,000 English words).
Or am I really wrong about this?
Some character sets use 2 bytes per character and thus that number
would be halved.
MySQL also supports 3 other TEXT-type datatypes: TINYTEXT (255 char),
MEDIUMTEXT (16MB), and LONGTEXT (4GB).
And a further question of my own: I'm not sure what the efficacy of
using MEDIUMTEXT would be. The size of the actual resulting field is
(# bytes + 3) - while for TEXT it's (# bytes + 2). Therefore if your
text field consisted of 8MB a MEDIUMTEXT field would be one byte
longer than a TEXT version of the same field. And what is the
benefit of TINYTEXT over a VARCHAR field?
At 5:39 PM -0700 7/22/01, Tom Gao wrote:
>Hi
>
>just out of curiosity how man chars does the type 'text' have ?
>
>I can't seem to find it on the mysql manual.
>
>Thanks
>Tom
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