如何在MySQL中将错误编码的数据转换为UTF-8？
您需要将CONVERT()函数与二进制关键字一起使用。语法如下-
SELECT CONVERT(binary CONVERT(yourColumnName using latin1) USING UTF8) as anyAliasName FROM yourTableName;
为了理解上述语法，让我们创建一个表。创建表的查询如下-
mysql> create table UtfDemo -> ( -> Id int NOT NULL AUTO_INCREMENT, -> Name varchar(15), -> PRIMARY KEY(Id) -> );
使用INSERT命令在表中插入一些记录。查询如下-
mysql> insert into UtfDemo(Name) values('Obama’s');
mysql> insert into UtfDemo(Name) values('John’s');
mysql> insert into UtfDemo(Name) values('Carol’s');
mysql> insert into UtfDemo(Name) values('Sam’s');使用select语句显示表中的所有记录。查询如下-
mysql> select *from UtfDemo;
以下是输出-
+----+----------------+ | Id | Name | +----+----------------+ | 1 | Obama’s | | 2 | John’s | | 3 | Carol’s | | 4 | Sam’s | +----+----------------+ 4 rows in set (0.00 sec)
这是将错误编码的数据转换为UTF8的查询-
mysql> select CONVERT(binary CONVERT(Name using latin1) using utf8) as ListOfName from UtfDemo;
以下是输出-
+------------+ | ListOfName | +------------+ | Obama’s | | John’s | | Carol’s | | Sam’s | +------------+ 4 rows in set, 1 warning (0.00 sec)