我正在尝试制作备份文件并使用php语言和mysql数据库恢复它。 我可以成功生成备份文件，但是当我恢复它时，mysql日志文件显示此错误
Aborted connection 16169 to db: 'radius' user: 'root' host: 'localhost' (Incorrect datetime value: '' for column 'AcctStopTime' at row 1)
为什么出现此错误？我从数据库
生成了这个文件+----------------------+-------------+------+-----+---------+---------------
-+
| Field | Type | Null | Key | Default | Extra
|
+----------------------+-------------+------+-----+---------+---------------
- +
| RadAcctId | bigint(21) | NO | PRI | NULL | auto_increment
|
| AcctSessionId | varchar(32) | NO | MUL | NULL |
|
| AcctUniqueId | varchar(32) | NO | MUL | NULL |
|
| UserName | varchar(64) | NO | MUL | NULL |
|
| Realm | varchar(64) | YES | | NULL |
|
| NASIPAddress | varchar(15) | NO | MUL | NULL |
|
| NASPortId | varchar(15) | YES | | NULL |
|
| NASPortType | varchar(32) | YES | | NULL |
|
| AcctStartTime | datetime | NO | MUL | NULL |
|
| AcctStopTime | datetime | YES | MUL | NULL |
|
| AcctSessionTime | int(12) | YES | | NULL |
|
| AcctAuthentic | varchar(32) | YES | | NULL |
|
| ConnectInfo_start | varchar(50) | YES | | NULL |
|
| ConnectInfo_stop | varchar(50) | YES | | NULL |
|
| AcctInputOctets | bigint(20) | YES | | NULL | |
+----------------------+-------------+------+-----+---------+--------------
--+