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UTF-8: General? Bin? Unicode?

... In general, utf8_general_ci is faster than utf8_unicode_ci, but less correct. Here is the difference: For any Unicode character set, operations performed using the _general_ci collation are faster than those for the _unicode_ci coll...
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How to change the CHARACTER SET (and COLLATION) throughout a database?

...n in a table (Mysql). He set it up with Latin collation, when it should be UTF8, and now I have issues. Every record with Chinese and Japan character turn to ??? character. ...
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]

... utf8_general_ci is a very simple — and on Unicode, very broken — collation, one that gives incorrect results on general Unicode text. What it does is: converts to Unicode normalization form D for canonical decompositio...
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How to make MySQL handle UTF-8 properly

... Update: Short answer - You should almost always be using the utf8mb4 charset and utf8mb4_unicode_ci collation. To alter database: ALTER DATABASE dbname CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; See: Aaron's comment on this answer How to make MySQL handle UTF-8 properly W...
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How can I transform string to UTF-8 in C#?

...: byte[] bytes = Encoding.Default.GetBytes(myString); myString = Encoding.UTF8.GetString(bytes); Another thing you may have to remember: If you are using Console.WriteLine to output some strings, then you should also write Console.OutputEncoding = System.Text.Encoding.UTF8;!!! Or all utf8 strings...
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How to change collation of database, table, column?

The database is latin1_general_ci now and I want to change collation to utf8mb4_general_ci . 19 Answers ...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

... UrsAI2UDP 拓展用法 发送和接收文本 (URSAI2UDPTest) 发送和接收字节数组 (UDPBinaryTest) « 返回首页 Iot 专题 拓展下载: UrsAI2UDP.zip demo下载: CLOUD_REMOTE_VIDEO_CAR.aia 原作者开发动机 ...
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Why would json_encode return an empty string

...ns probably a faulty response, some strings were probably not UTF-8 using utf8_encode() on those string solved my problem, but see note below Here is a recursive function that can force convert to UTF-8 all the strings contained in an array: function utf8ize($d) { if (is_array($d)) { ...
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java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'

...ne will see squares if you are not using fonts that support them. MySQL's utf8 only supports basic multilingual plane, and you need to use utf8mb4 instead: For a supplementary character, utf8 cannot store the character at all, while utf8mb4 requires four bytes to store it. Since utf8 cannot s...
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Illegal mix of collations MySQL Error

... SET collation_connection = 'utf8_general_ci'; then for your databases ALTER DATABASE your_database_name CHARACTER SET utf8 COLLATE utf8_general_ci; ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; MySQL sneaks swe...