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https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf16.html
The utf16 character set is the ucs2 character set with an extension that enables encoding of supplementary characters: For a BMP character, utf16 and ucs2 have identical storage characteristics: same code values, same encoding, same length. For a ...This is called the “surrogate” mechanism: For a number greater than 0xffff, take 10 bits and add them to 0xd800 and put them in the first 16-bit word, take 10 more bits and add them to 0xdc00 and put them in the next 16-bit ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8mb4.html
The utf8mb4 character set has these characteristics: Supports BMP and supplementary characters. utf8mb4 contrasts with the utf8mb3 character set, which supports only BMP characters and uses a maximum of three bytes per character: For a BMP ...
https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html
(Exception: Element 1 cannot be empty or missing.) In all cases, an element may be surrounded by whitespace characters and the entire list is enclosed in single quotes. For more information about SSL file autogeneration, including file names and ...
https://dev.mysql.com/doc/refman/8.0/en/string-functions-charset.html
This section answers the question: What is the character set and collation of such a string? For simple functions that take string input and return a string result as output, the output's character set and collation are the same as those of the ...
https://dev.mysql.com/doc/refman/8.0/en/charset-restrictions.html
Identifiers are stored in mysql database tables (user, db, and so forth) using utf8mb3, but identifiers can contain only characters in the Basic Multilingual Plane (BMP). The ucs2, utf16, utf16le, and utf32 character sets have the following ...
https://dev.mysql.com/doc/refman/8.0/en/charset-syntax.html
There are default settings for character sets and collations at four levels: server, database, table, and column. CHARACTER SET is used in clauses that specify a character set. Character set issues affect not only data storage, but also ...The ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf32.html
The utf32 character set is fixed length (like ucs2 and unlike utf16). utf32 uses 32 bits for every character, unlike ucs2 (which uses 16 bits for every character), and unlike utf16 (which uses 16 bits for some characters and 32 bits for others).
https://dev.mysql.com/doc/refman/8.0/en/information-schema-character-sets-table.html
The CHARACTER_SETS table has these columns: CHARACTER_SET_NAME The character set name. MAXLEN The maximum number of bytes required to store one character. Notes Character set information is also available from the SHOW CHARACTER SET statement. The ...
https://dev.mysql.com/doc/refman/8.0/en/load-data.html
Input File Character Set The file name must be given as a literal string. The server interprets the file name using the character set indicated by the character_set_filesystem system variable. By default, the server interprets the file contents ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-command-options.html
Batch mode results in nontabular output format and escaping of special characters. --character-sets-dir=dir_name Command-Line Format --character-sets-dir=dir_name Type Directory name The directory where character sets are installed. mysql supports ...