使用Python和Mysqldb库从MongoDB中提取一些数据并将其插入MySQL数据库。
+-------------------+------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+------------+------+-----+---------+----------------+
| id | int(16) | NO | PRI | NULL | auto_increment |
| subject | tinytext | NO | | NULL | |
| created_at | datetime | NO | | NULL | |
+-------------------+------------+------+-----+---------+----------------+
created_at = "2012/06/08 11:47:40 -0700"
sql1 = ("INSERT INTO `items` (`description`, `created_at`) VALUES (%s, %s)", (description, created_at)
try:
cursor.execute(*sql1)
except MySQLdb.Error, e:
print "Error %s: %s" % (e.args[0], e.args[1])
对于第一次插入数据库,我收到警告,但是我没有收到后续插入的警告。
conf / db_tools-import.py:53:警告:第1行的'created_at'列超出范围值 cursor.execute(* SQL1)
我该如何解决这个问题? 感谢。
答案 0 :(得分:2)
您收到警告是因为您在日期字段中插入了较长的日期。提交日期为“YYYY-MM-DD”(http://dev.mysql.com/doc/refman/5.1/en/datetime.html)。
我在Mysql中做了我自己的测试,看看:
mysql> create table bigtable (created_at date);
Query OK, 0 rows affected (0.07 sec)
mysql>
Query OK, 1 row affected, 1 warning (0.00 sec)
mysql> show warnings;
+---------+------+-------------------------------------------------+
| Level | Code | Message |
+---------+------+-------------------------------------------------+
| Warning | 1265 | Data truncated for column 'created_at' at row 1 |
+---------+------+-------------------------------------------------+
1 row in set (0.00 sec)
mysql> select * from bigtable;
+------------+
| created_at |
+------------+
| 2012-06-08 |
+------------+
1 row in set (0.00 sec)
如果您想避免警告,只需传递“YYYY-MM-DD”或将列更改为日期时间,
祝你好运