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https://dev.mysql.com/doc/refman/8.0/en/charset-unicode.html
This section describes support for Unicode in MySQL. For information about the Unicode Standard itself, visit the Unicode Consortium website. BMP characters have these characteristics: Their code point ... Although utf8 is currently an alias for utf8mb3, at some ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode.html
The Unicode Standard includes characters from the Basic Multilingual Plane (BMP) and supplementary characters that lie outside the BMP. This section describes support for Unicode in MySQL. For information about the Unicode Standard itself, visit the Unicode Consortium website.
https://dev.mysql.com/doc/refman/5.5/en/charset-unicode.html
utf8: An alias for utf8mb3. ... Although many of the supplementary characters come from East Asian languages, what MySQL 5.5 adds is support for more Japanese and Chinese characters in Unicode character sets, not support for new Japanese and Chinese character sets. The MySQL implementation of UCS-2, UTF-16, and UTF-32 stores characters in big ...
https://stackoverflow.com/questions/202205/how-to-make-mysql-handle-utf-8-properly
While using SET NAMES UTF8 (or UTF8mb4) is correct, you don't explain what it does (character set used for this connection). "This does the trick" sounds like it would solve the problem (make MySQL handle UTF-8 properly), but many MySQL databases are set to latin1 by default, so that wouldn't make it a proper solution.
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8.html
The utf8mb3 character set is deprecated and will be removed in a future MySQL release. Please use utf8mb4 instead. Although utf8 is currently an alias for utf8mb3, at some point utf8 will become a reference to utf8mb4.To avoid ambiguity about the meaning of utf8, consider specifying utf8mb4 explicitly for character set references instead of utf8.
https://www.freshworks.com/company/supporting-utf8-characters-in-a-utf8-mysql-table-blog/
Nov 15, 2019 · For more on the MySQL and UTF8 story, you can read “ In MySQL never use utf8 ” blog post. Emojis in Freshservice – the Rails 3 way. Emojis are valid UTF8 characters and require 4 bytes to be stored and retrieved. However, with the above-specified limitation from MySQL’s native UTF8 encoding, we could not natively support all emojis.
https://dev.mysql.com/doc/refman/8.0/en/charset.html
MySQL 8.0 Reference Manual / Character Sets, Collations, Unicode Chapter 10 Character Sets, Collations, Unicode ... MySQL includes character set support that enables you to store data using a variety of character sets and perform comparisons according to a variety of collations. ... For example, to use the utf8 Unicode character set, issue ...
https://mathiasbynens.be/notes/mysql-utf8mb4
It doesn’t offer full Unicode support, which can lead to data loss or security vulnerabilities. MySQL’s utf8mb4. Luckily, MySQL 5.5.3 (released in early 2010) introduced a new encoding called utf8mb4 which maps to proper UTF-8 and thus fully supports Unicode, including astral symbols. Switching from MySQL’s utf8 to utf8mb4 Step 1: Create ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-sets.html
utf8mb4, utf16, utf16le, and utf32 support Basic Multilingual Plane (BMP) characters and supplementary characters that lie outside the BMP.utf8 and ucs2 support only BMP characters.. Most Unicode character sets have a general collation (indicated by _general in the name or by the absence of a language specifier), a binary collation (indicated by _bin in the name), and several language-specific ...
https://dev.mysql.com/doc/refman/5.5/en/charset.html
MySQL includes character set support that enables you to store data using a variety of character sets and perform comparisons according to a variety of collations. You can specify character sets at the server, database, table, and column level. This chapter discusses the following topics:
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