Information Schema CHARACTER_SETS Table
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The Information Schema CHARACTER_SETS
table contains a list of supported character sets, their default collations and maximum lengths.
It contains the following columns:
Column | Description |
---|---|
CHARACTER_SET_NAME | Name of the character set. |
DEFAULT_COLLATE_NAME | Default collation used. |
DESCRIPTION | Character set description. |
MAXLEN | Maximum length. |
The SHOW CHARACTER SET
statement returns the same results (although in a different order), and both can be refined in the same way. For example, the following two statements return the same results:
SHOW CHARACTER SET WHERE Maxlen LIKE '2';
and
SELECT * FROM information_schema.CHARACTER_SETS WHERE MAXLEN LIKE '2';
See Setting Character Sets and Collations for details on specifying the character set at the server, database, table and column levels, and Supported Character Sets and Collations for a full list of supported characters sets and collations.
Example
SELECT CHARACTER_SET_NAME FROM information_schema.CHARACTER_SETS WHERE DEFAULT_COLLATE_NAME LIKE '%chinese%'; +--------------------+ | CHARACTER_SET_NAME | +--------------------+ | big5 | | gb2312 | | gbk | +--------------------+
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