MySQLで指定された文字列の長さを取得するにはどうすればよいですか?

mysql> Select CHAR_LENGTH('New Delhi');
+--------------------------+
| CHAR_LENGTH('New Delhi') |
+--------------------------+
| 9                        |
+--------------------------+
1 row in set (0.00 sec)

mysql> Select CHAR_LENGTH('NewDelhi');
+-------------------------+
| CHAR_LENGTH('NewDelhi') |
+-------------------------+
| 8                       |
+-------------------------+
1 row in set (0.00 sec)

mysql> Select CHARACTER_LENGTH('NewDelhi');
+------------------------------+
| CHARACTER_LENGTH('NewDelhi') |
+------------------------------+
| 8                            |
+------------------------------+
1 row in set (0.00 sec)

mysql> Select CHARACTER_LENGTH('New Delhi');
+-------------------------------+
| CHARACTER_LENGTH('New Delhi') |
+-------------------------------+
| 9                             |
+-------------------------------+
1 row in set (0.00 sec)