MySQL 8.0.25支持的字符集

MySQL 8.0.25支持的字符集非常丰富，以下是详细的字符集列表：

Charset |Description                    |Default collation  |Maxlen|
--------+-------------------------------+-------------------+------+
armscii8|ARMSCII-8 Armenian             |armscii8_general_ci|     1|
ascii   |US ASCII                       |ascii_general_ci   |     1|
big5    |Big5 Traditional Chinese       |big5_chinese_ci    |     2|
binary  |Binary pseudo charset          |binary             |     1|
cp1250  |Windows Central European       |cp1250_general_ci  |     1|
cp1251  |Windows Cyrillic               |cp1251_general_ci  |     1|
cp1256  |Windows Arabic                 |cp1256_general_ci  |     1|
cp1257  |Windows Baltic                 |cp1257_general_ci  |     1|
cp850   |DOS West European              |cp850_general_ci   |     1|
cp852   |DOS Central European           |cp852_general_ci   |     1|
cp866   |DOS Russian                    |cp866_general_ci   |     1|
cp932   |SJIS for Windows Japanese      |cp932_japanese_ci  |     2|
dec8    |DEC West European              |dec8_swedish_ci    |     1|
eucjpms |UJIS for Windows Japanese      |eucjpms_japanese_ci|     3|
euckr   |EUC-KR Korean                  |euckr_korean_ci    |     2|
gb18030 |China National Standard GB18030|gb18030_chinese_ci |     4|
gb2312  |GB2312 Simplified Chinese      |gb2312_chinese_ci  |     2|
gbk     |GBK Simplified Chinese         |gbk_chinese_ci     |     2|
geostd8 |GEOSTD8 Georgian               |geostd8_general_ci |     1|
greek   |ISO 8859-7 Greek               |greek_general_ci   |     1|
hebrew  |ISO 8859-8 Hebrew              |hebrew_general_ci  |     1|
hp8     |HP West European               |hp8_english_ci     |     1|
keybcs2 |DOS Kamenicky Czech-Slovak     |keybcs2_general_ci |     1|
koi8r   |KOI8-R Relcom Russian          |koi8r_general_ci   |     1|
koi8u   |KOI8-U Ukrainian               |koi8u_general_ci   |     1|
latin1  |cp1252 West European           |latin1_swedish_ci  |     1|
latin2  |ISO 8859-2 Central European    |latin2_general_ci  |     1|
latin5  |ISO 8859-9 Turkish             |latin5_turkish_ci  |     1|
latin7  |ISO 8859-13 Baltic             |latin7_general_ci  |     1|
macce   |Mac Central European           |macce_general_ci   |     1|
macroman|Mac West European              |macroman_general_ci|     1|
sjis    |Shift-JIS Japanese             |sjis_japanese_ci   |     2|
swe7    |7bit Swedish                   |swe7_swedish_ci    |     1|
tis620  |TIS620 Thai                    |tis620_thai_ci     |     1|
ucs2    |UCS-2 Unicode                  |ucs2_general_ci    |     2|
ujis    |EUC-JP Japanese                |ujis_japanese_ci   |     3|
utf16   |UTF-16 Unicode                 |utf16_general_ci   |     4|
utf16le |UTF-16LE Unicode               |utf16le_general_ci |     4|
utf32   |UTF-32 Unicode                 |utf32_general_ci   |     4|
utf8    |UTF-8 Unicode                  |utf8_general_ci    |     3|
utf8mb4 |UTF-8 Unicode                  |utf8mb4_general_ci |     4|

以上是MySQL 8.0.25所支持的详细字符集列表。你可以根据具体需求选择适合的字符集。


Tidb4.0.2支持的字符集非常丰富，以下是详细的字符集列表：

```sql
Charset|Description  |Default collation|Maxlen|
-------+-------------+-----------------+------+
utf8   |UTF-8 Unicode|utf8_bin         |     3|
utf8mb4|UTF-8 Unicode|utf8mb4_bin      |     4|
ascii  |US ASCII     |ascii_bin        |     1|
latin1 |Latin1       |latin1_bin       |     1|
binary |binary       |binary           |     1|

下面是MySQL字符集和TiDB字符集的映射关系表格：

MySQL字符集|TiDB字符集
ascii|ascii
latin1|latin1
latin2|utf8
latin5|utf8mb4
latin7|binary
utf8|-
utf8mb4|utf8mb4
big5|-
gb2312|-
gbk|-
sjis|-
euckr|-
ucs2|-
utf16|-
utf16le|-
utf32|-
binary|binary
cp1250|-
cp1251|-
cp1256|-
cp1257|-
cp850|-
cp852|-
cp866|-
cp932|-
dec8|-
eucjpms|-
gb18030|-
geostd8|-
greek|-
hebrew|-
hp8|-
keybcs2|-
koi8r|-
koi8u|-
macce|-
macroman|-
swe7|-
tis620|-
ujis|-