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https://dev.mysql.com/doc/refman/8.4/en/character-arrays.html
Each simple character set has a configuration file located in the sql/share/charsets directory. For a character set named MYSYS, the file is named MYSET.xml. <map> elements appear within these elements: <ctype> defines attributes for each character. <collation> elements indicate character ordering for comparison and sorting, one element per ...
https://dev.mysql.com/doc/refman/8.4/en/charset-asian-sets.html
See Section 12.10.7.2, “The gb18030 Character Set”, for additional information about character set support for the Chinese National Standard GB 18030. The Asian character sets that we support include Chinese, Japanese, Korean, and Thai. For ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-sets.html
The reason is that utf8mb4_unicode_ci supports mappings such as expansions; that is, when one character compares as equal to combinations of other characters. (See Section 14.8, “String Functions and Operators”.) If a collation uses a weight ...
https://dev.mysql.com/doc/refman/8.4/en/cannot-initialize-character-set.html
You might see an error like this if you have character set problems: MySQL Connection Failed: Can't initialize character set charset_name This error can have any of the following causes: The character set is a multibyte character set and you have ...
https://dev.mysql.com/doc/refman/8.4/en/show-character-set.html
SHOW {CHARACTER SET | CHARSET} [LIKE 'pattern' | WHERE expr] The SHOW CHARACTER SET statement shows all available character sets. The LIKE clause, if present, indicates which character set names to match. The WHERE clause can be given to select ...
https://dev.mysql.com/doc/refman/8.4/en/set-character-set.html
SET {CHARACTER SET | CHARSET} {'charset_name' | DEFAULT} This statement maps all strings sent between the server and the current client with the given mapping. SET CHARACTER SET sets three session system variables: character_set_client and ...
https://dev.mysql.com/doc/internals/en/character-set.html
MySQL has a very flexible character set support as documented in Character Sets, Collations, Unicode. Number Hex Character Set Name 8 0x08 latin1_swedish_ci 33 0x21 utf8_general_ci 63 0x3f binary Protocol::CharacterSet A character set is defined in ...
https://dev.mysql.com/doc/refman/8.4/en/optimize-character.html
For character and string columns, follow these guidelines: Use binary collation order for fast comparison and sort operations, when you do not need language-specific collation features. You can use the BINARY operator to use binary collation within ...
https://dev.mysql.com/doc/connectors/en/connector-net-using-character-sets.html
Treating Binary Blobs As UTF8 Before the introduction of 4-byte UTF-8 character set, MySQL did not support 4-byte UTF8 sequences. This makes it difficult to represent some multibyte languages such as Japanese. To try and alleviate this, MySQL ...
https://dev.mysql.com/doc/connector-net/en/connector-net-using-character-sets.html
Treating Binary Blobs As UTF8 Before the introduction of 4-byte UTF-8 character set, MySQL did not support 4-byte UTF8 sequences. This makes it difficult to represent some multibyte languages such as Japanese. To try and alleviate this, MySQL ...