mysql str_to_date datetime値が正しくない問題

Question

mysqlが私のdatetime値を好きではないのはなぜですか？

mysql> select STR_TO_DATE('2017-10-06T00:00:00', '%%Y-%%m-%%dT%%H:%%i:%%s'); 
+---------------------------------------------------------------+ 
| STR_TO_DATE('2017-10-06T00:00:00', '%%Y-%%m-%%dT%%H:%%i:%%s') | 
+---------------------------------------------------------------+ 
| NULL               | 
+---------------------------------------------------------------+ 
1 row in set, 2 warnings (0.00 sec) 

mysql> show warnings 
    -> ; 
+---------+------+--------------------------------------------------------------------------+ 
| Level | Code | Message                 | 
+---------+------+--------------------------------------------------------------------------+ 
| Warning | 1411 | Incorrect datetime value: '2017-10-06T00:00:00' for function str_to_date | 
| Warning | 1411 | Incorrect datetime value: '2017-10-06T00:00:00' for function str_to_date | 
+---------+------+--------------------------------------------------------------------------+ 
2 rows in set (0.01 sec) 

任意のアイデア??

Answer 1

試してみてください。

SELECT STR_TO_DATE(
    '2017-10-06T00:00:00', 
    '%Y-%m-%dT%H:%i:%s' 
); 

がdb-fiddleを参照してください。