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How to convert wrongly encoded data to UTF-8 in MySQL?
You need to use CONVERT() function along with binary keyword. The syntax is as follows −
SELECT CONVERT(binary CONVERT(yourColumnName using latin1) USING UTF8) as anyAliasName FROM yourTableName;
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table UtfDemo -> ( -> Id int NOT NULL AUTO_INCREMENT, -> Name varchar(15), -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (0.76 sec)
Insert some records in the table using INSERT command. The query is as follows −
mysql> insert into UtfDemo(Name) values('Obama’s');
Query OK, 1 row affected (0.28 sec)
mysql> insert into UtfDemo(Name) values('John’s');
Query OK, 1 row affected (0.23 sec)
mysql> insert into UtfDemo(Name) values('Carol’s');
Query OK, 1 row affected (0.15 sec)
mysql> insert into UtfDemo(Name) values('Sam’s');
Query OK, 1 row affected (0.19 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from UtfDemo;
The following is the output −
+----+----------------+ | Id | Name | +----+----------------+ | 1 | Obama’s | | 2 | John’s | | 3 | Carol’s | | 4 | Sam’s | +----+----------------+ 4 rows in set (0.00 sec)
Here is the query to convert wrongly encoded data to UTF8 −
mysql> select CONVERT(binary CONVERT(Name using latin1) using utf8) as ListOfName from UtfDemo;
The following is the output −
+------------+ | ListOfName | +------------+ | Obama’s | | John’s | | Carol’s | | Sam’s | +------------+ 4 rows in set, 1 warning (0.00 sec)
Updated on: 30-Jul-2019
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