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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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Hibernate + Mysql grammar error when select from a table with unicode characters

In my db, there is a table with a column that may contain Unicode characters that are entered by end users. I have configured my hibernate mysql connection in a property file as given below. spring.datasource.url:…
vigamage
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HTML Special Characters and Emojis Showing up Incorrectly on Laravel Webpage

I am likely doing something silly and thought this would be pretty straightforward. I am pulling data from an external API and storing it right into the database via Eloquent model's I am creating/saving. The data saved into the database field looks…
ComputerLocus
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Detect Encoding Latin1 and UTF-8

I'm getting files which can be latin1 or utf8 encoding. I Get it as a stream in C#. How can I detect if its latin1 ("ISO-8859-1") or UTF-8? When I try to detect it, it will always detect it as UTF-8. This code don't work, if will always be UTF-8. …
Mads Illemann
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How can I change the collations in my MySQL 5.6 DB to utf8mb4_unicode_ci?

I have in my DB (MySQL 5.6 in a shared hosting server) several collations and I want to set all of them to utf8mb4_unicode_ci collation and also change the connection charset to utf8mb4 How can I do it using phpMyAdmin for my DB without going table…
Ram
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Convert byte string to emoji in MySQL

SELECT BINARY(''); outputs àÛÕ. How to convert the (result) byte string back to an emoticon?
dahe
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Rails, Devise, and validating email address with emojis

I was really behind the times, and just recently converted my MySQL (v5.7.30) database tables to support utf8mb4 (emojis, symbols, etc). I'm using Devise 3.5.10 for user authentication in my Rails 4 app. To validate email, I rely on Devise's…
DelPiero
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How get emoji character from json_decode and store theme in mysql table

I get data from file_get_contents method and convert this data to JSON but when data contain an emoji character, I cannot give this field in JSON file and store it in database. I changed table collation to utf8mb4_general_ci but do not work my code…
kamal
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Query to calculate Mysql row max size

Say I have a db table with 5 fields. id bigint(20) name varchar(255) place varchar(255) DOB date about TEXT Maximum row size is 65535 bytes in MySQL that is shared among all columns in the table, except TEXT/BLOB columns. I need a query which will…
Ashiq K
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Displaying htmlspecials chars that have ended up in a utf8 database field

I have a utf8mb4 database field which has ended up with htmlspecials such as 's This is from user entered data via a html form. To display this field in laravel blade I use {{ $profile }} but that runs through phps htmlspecialschars feature to…
adam78
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mysql incorrect string value after changing encoding to utf8mb4

i am trying to create a Flask application, and while creating the User mysql table i encountered a problem. i am hashing the user's password using 32 bytes of salt, and 1000000 repeats of sha512 hashing attempts ( i am new to hashing, if this isn't…
Moti Shakuri
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Unable to save emoji/emoticon in MySQL from PHP using PDO, but can insert them from cmd/phpmyadmin

after some research I converted the field and table collation to utf8mb4_bin. If I paste an emoji in the field directly through phpmyadmin, or if I write the query in the command line, it works fine. The problem is doing it from the website. Here is…
C. Ovidiu
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Can't store certain chinese characters in MySQL

I'm importing csv files to MySQL using LOAD DATA with CHARACTER SET UTF8MB4. This workes well most often, but from time to time I still get errors like this: ERROR 1300 (HY000): Invalid utf8mb4 character string: '楽天市場をみ' It seems like if there are…
DOB
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AWS MariaDB Statement could not be executed

Seem to have a bit of a character encoding issue with MariaDB on AWS that I can't seem to resolve; Statement could not be executed (22007 - 1366 - Incorrect string value: '\xA320 Of...' Initially I presumed this was because the table was set to…
Matthew
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MySql and JDBC: change charset of a single column to utf8mb4

I have an "old" database (in utf 8) where I read and write on by using JDBC. Now, I must be able to also store emoji into a column of my table. I have changed the charset of involved columns to utf8mb4: ALTER TABLE myTable CHANGE column_name…
giozh
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Databse utf8mb4_unicode_ci not save full emojies

I use utf8mb4_unicode_ci for my tables But this collection not save all emojies and replace with ???? For example save correct but replace with ???? Also I use utf8mb4_bin but not work
user3612383
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