MysqL> SELECT LOCATE("n","München") COLLATE utf8_general_ci;
ERROR 1253 (42000): COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'binary'

我该如何摆脱这个错误？

我已经尝试过的(复制和粘贴)：

$MysqL -u admin -p $DATABASE
Enter password:
Reading table information for completion of table and column names
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Welcome to the MysqL monitor.  Commands end with ; or \g.
Your MysqL connection id is 2
Server version: 5.1.69 Source distribution
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MysqL> SELECT LOCATE("n","München") COLLATE utf8_general_ci;
ERROR 1253 (42000): COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'binary'
MysqL> SET NAMES utf8;
Query OK,0 rows affected (0.00 sec)
MysqL> SELECT LOCATE("n","München") COLLATE utf8_general_ci;
ERROR 1253 (42000): COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'binary'
MysqL> SELECT LOCATE(_utf8"n",_utf8"München") COLLATE utf8_general_ci;
ERROR 1253 (42000): COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'binary'
MysqL> SHOW VARIABLES LIKE "character_set_database";
+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| character_set_database | utf8  |
+------------------------+-------+
1 row in set (0.00 sec)