使用ON重复键这些是在表MyTable的以下输入错误,同时插入重复的值到DP,使用Python MySQL数据库
mysql> select * from myTable;
+------+--------+------+
| id | name | age |
+------+--------+------+
| 110 | c | 23 |
| 114 | chadns | 897 |
| 1112 | chadns | 897 |
+------+--------+------+
这是MyTable的的模式
mysql> desc myTable;
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| id | int(3) | NO | PRI | NULL | auto_increment |
| name | varchar(10) | YES | | NULL | |
| age | varchar(10) | YES | | NULL | |
+-------+-------------+------+-----+---------+----------------+
在执行以下代码我得到以下错误
import MySQLdb
con_local = MySQLdb.connect(host ="127.0.0.1",user = "root",passwd ="ctl",db ="ads")
cursor_local = con_local.cursor()
cursor_local.execute("select * from myTable")
x = cursor_local.fetchall()
for i in x:
s = "insert into myTable values(%d,%s,%s) on duplicate key update id = id+1000"
cursor_local.execute('''insert into myTable values(%d,%s,%s) on duplicate key update id = id+1000'''%(i[0],i[1],i[2]));
cursor_local.execute("commit");
错误:
Traceback (most recent call last):
File "chandu.py", line 15, in <module>
cursor_local.execute('''insert into Chandana values(%d,%s,%s) on duplicate key update id = id+1000'''%(i[0],i[1],i[2]));
File "/usr/lib/python2.7/dist-packages/MySQLdb/cursors.py", line 174, in execute
self.errorhandler(self, exc, value)
File "/usr/lib/python2.7/dist-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
raise errorclass, errorvalue
_mysql_exceptions.OperationalError: (1054, "Unknown column 'c' in 'field list'")
我试图插入重复的值,但是改变了主键ID,但它不工作谁能告诉我解决
'执行(“”''为什么3个单引号开放? – Alex
您可能需要引用查询中的字符串,或者使用准备好的查询,如Alex的回答。 – Barmar