如何在mysql中检测错误的字符编码

Question

我有一个带有一些导入数据的UTF-8数据库。 某些错误输入的数据，具有错误的字符，即代替Nürburgring=>Nürburgring

看来我要手动更正这些行...所以无论如何都可以通过选择来查找这些行？

Answer 1

您必须将与数据库的连接定义为utf8：

$connection = mysql_connect('localhost', 'someuser', 'xxx');
mysql_select_db('mydb', $connection);
mysql_query("SET NAMES_junk 'utf8'", $connection);

-- get utf-8 thing
$query = sprintf('SELECT yourname FROM table where <something> = <something>');
$result = mysql_query($query, $connection);
$result = mysql_fetch_assoc($result);

Answer 2

如果您通过sql yog访问mysql，则

Got to the database
       right click on database which you are accessing 
          alter database 
             select 'utf8' as database charset and 'utf8_general_ci' as
                 database collection

编辑：试试这个，

SELECT col1 FROM  table
WHERE col1 LIKE '%[^0-9a-zA-Z]%'

希望对您有所帮助