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https://dev.mysql.com/charset-metadata.html
Metadata is “the data about the data.” Anything that describes the database—as opposed to being the contents of the database—is metadata. Thus column names, database names, user names, version names, and most of the string results from SHOW ...
https://dev.mysql.com/charset-national.html
Standard SQL defines NCHAR or NATIONAL CHAR as a way to indicate that a CHAR column should use some predefined character set. For example, these data type declarations are equivalent: CHAR(10) CHARACTER SET utf8 NATIONAL CHARACTER(10) NCHAR(10) As ...
https://dev.mysql.com/charset-repertoire.html
The repertoire of a character set is the collection of characters in the set. String expressions have a repertoire attribute, which can have two values: ASCII: The expression can contain only characters in the Unicode range U+0000 to U+007F.
https://dev.mysql.com/charset-restrictions.html
Identifiers are stored in mysql database tables (user, db, and so forth) using utf8, 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/charset-se-me-sets.html
South European and Middle Eastern character sets supported by MySQL include Armenian, Arabic, Georgian, Greek, Hebrew, and Turkish. armscii8 (ARMSCII-8 Armenian) collations: armscii8_bin armscii8_general_ci (default) cp1256 (Windows Arabic) ...
https://dev.mysql.com/charset-server.html
To change the default server character set and collation when building from sources, use the DEFAULT_CHARSET and DEFAULT_COLLATION options for CMake. -DDEFAULT_CHARSET=latin1 \ -DDEFAULT_COLLATION=latin1_german1_ci Both mysqld and CMake verify that ... MySQL Server has a server character set and a server ...
https://dev.mysql.com/charset-table.html
The CREATE TABLE and ALTER TABLE statements have optional clauses for specifying the table character set and collation: CREATE TABLE tbl_name (column_list) [[DEFAULT] CHARACTER SET charset_name] [COLLATE collation_name]] ALTER TABLE tbl_name ...
https://dev.mysql.com/charset-unicode-conversion.html
This section describes issues that you may face when converting character data between the utf8mb3 and utf8mb4 character sets. Note This discussion focuses primarily on converting between utf8mb3 and utf8mb4, but similar principles apply to ...
https://dev.mysql.com/charset-unicode-sets.html
This section describes the collations available for Unicode character sets and their differentiating properties. MySQL supports multiple Unicode character sets: utf8mb4: A UTF-8 encoding of the Unicode character set using one to four bytes per ...
https://dev.mysql.com/charset-unicode-ucs2.html
In UCS-2, every character is represented by a 2-byte Unicode code with the most significant byte first. For example: LATIN CAPITAL LETTER A has the code 0x0041 and it is stored as a 2-byte sequence: 0x00 0x41. CYRILLIC SMALL LETTER YERU (Unicode ...
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