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Questions tagged [utf8mb4]

Unlike its `utf8` encoding, MySQL’s `utf8mb4` encoding offers full Unicode support (including four-byte UTF-8-encoded symbols).

Unlike its utf8 encoding, MySQL’s utf8mb4 encoding offers full Unicode support (including four-byte UTF-8-encoded symbols).

The utf8mb4 character set is useful because nowadays we need support for storing not only language characters but also symbols, newly introduced emojis, and so on.

utf8mb4 has been available since MySQL 5.5.3 (released March 2010).

A nice read on How to support full Unicode in MySQL databases by Mathias Bynens can also shed some light on this.

More information about the utf8mb4 character set may be found on the official MySQL Documentation.

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Danger of switching prestashop database from utf8 to utf8mb4 to get access to emoticons?

With the arrival of the display of emoticons in Google searches, I wanted to make my own tests by embellishing a few meta_title to see if it could have a positive effect for our site. Unfortunately, after saving my meta_title change with the special…
William Karagozyan
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How Django stores emojis in mysql tables with utf8 charset?

I have a Django 1.4 app that was saving text in mysql database with utf8 charset. Everything worked fine, but I came across a problem when I wanted to read this data using ruby where strings with emojis were throwing invalid byte sequence in utf-8…
majkel
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MYSQL gives me a latin-1 codec error even though i use utf8mb4

I'm getting this error when i try to insert certain data into my table: 'latin-1' codec can't encode character '\u2019' in position 8: ordinal not in range(256) The issue is that I'm not using latin-1 anywhere - the table is utf8mb4 and collation…
doodspav
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Django 2.0 - test using fixtures from dumpdata gives utf8mb4 encoding errors

I am using utf8mb4 encoding for my mySQL database. All my Django apps work correctly with it even with Cyrillic characters. But when I run ./manage.py test and try to load a fixture dumped from the same database, I get errors regarding the…
Teddy Markov
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Change Prestashop database from utf8_general_ci to utf8mb4_unicode_ci

I would like to use some Unicode 6.0 special characters (like thumbs-up and thumbs-down) in my Prestashop database, I get an error Illegal mix of collations (utf8mb4_unicode_ci,COERCIBLE) and (utf8_general_ci,IMPLICIT) for operation 'concat' Will…
user3254924
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Can't Fix MySQL Incorrect String Value (Already Change All Character Set)

I have some MySQL Character Set Error. I'm Korean, So I need put Korean in MySQL Server. but I can't. I changed all character set, and send query "SET NAMES UTF8MB4" but My Program print again Same Error. I try put "테스트" And Insert Into In Program…
Darkhost
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How to debug invalid data in MySQL utf8mb4 column in Etherpad Lite database

We're running Etherpad Lite and we're trying to migrate database from MySQL to PostgreSQL. MySQL database 'value' column is of type utf8mb4. However, around 10% of all rows contain value that is in fact encoded in Windows-1252 or ISO-8859-15 instead…
Mikko Rantalainen
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Why are information_schema and performance_schema not utf8mb4 (and should I care)?

I have been going through my MariaDB installation with a fine-toothed comb trying to update everything from utf8 (3-byte flavor) to utf8mb4. It's correct in my.cnf, all my databases, and all applicable tables and columns thereof. And when I create…
OsakaWebbie
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How to save emoji characters ( or ) in MySQL

I want to save unicode characters in my db. But not all characters saves correctly. How can I save or ? (no problem with ☔️ ⛧ etc.)
maksymov
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MYSQL UTF8MB4 keep showing ???? character

I would like to save extra rare Chinese character in database using mysql, however keep showing ???? after the text is inserted into the table. Previously I have searched how to insert any 4byte Chinese character into mysql data, and following the…
rifleon
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How to modify mariadb chartset at once?

I am developing with mariadb and Spring, JdbcTemplate. At first, we made DB charset as utf8, but now we have to change it into utf8mb4 because of emojis. Till now I update individual charset with query something like below. ALTER TABLE WT_WORKS…
Juneyoung Oh
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MySQL DB not handling non-latin characters properly

I'm seeing usernames of newly created accounts like 'कविता हेमनà¥à¤¤' within the database itself. From some digging I know that these names are just Facebook account names (I allow Facebook log in) but in non-latin scripts. I've…
credo56
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MySQL Workbench Select Breaking With utf8mb4 Field

In effort to support emoji's I converted a field on my table from latin1 to utf8mb4. The table has around 5million items and the conversion process took about an hour. Now I'm noticing something very strange, when I select a result with an emoji,…
user1516606
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Issue when deploying mysql db (utf8mb4_unicode_520_ci -> utf8mb4_unicode_ci)

I started working on a wordpress on my dev machine. mysql version is 5.6, and worpdress is 4.7 so its already using the utf8mb4_unicode_520_ci encoding if it detects its possible. My problem is that on my hosting (mysql 5.5) utf8mb4_unicode_520_ci…
Denis Florkin
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Play framework JDBC ebean mysql exception with characters řů but accepts áõ

Trying to save models and i get a: java.sql.SQLException: Incorrect string value: ... Saving a text like "jedna dva tři kachna dům a kachní maso" I'm using default.url="jdbc:mysql://[url]/[database]?characterEncoding=UTF-8"
acambeiro
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