pymysql.err.ProgrammingError 1064 执行命令时
pymysql.err.ProgrammingError 1064 when executing command
我只是看不出这个错误的原因。我在 phpMyAdmin 中尝试了相同的 SQL,它工作得很好,但是从 Python.
尝试时失败了
Python 代码 SQL 查询:
cursor.execute("UPDATE marketPricesAvg SET avg%sh=(SELECT AVG(price) FROM marketPrices WHERE itemName = %s AND ((NOW() - marketPrices.datetime) < %s) WHERE itemName = %s)", (time, itemName, time_sec, itemName))
错误信息:
Traceback (most recent call last):
File "/root/marketprices/insert.py", line 42, in <module>
calculate_avg(itemName, time)
File "/root/marketprices/insert.py", line 29, in calculate_avg
cursor.execute("UPDATE marketPricesAvg SET avg%sh=(SELECT AVG(price) FROM marketPrices WHERE itemName = %s AND ((NOW() - marketPrices.datetime) < %s) WHERE itemName = %s)", (time, itemName, time_sec, itemName))
File "/usr/local/lib/python2.7/dist-packages/pymysql/cursors.py", line 170, in execute
result = self._query(query)
File "/usr/local/lib/python2.7/dist-packages/pymysql/cursors.py", line 328, in _query
conn.query(q)
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 516, in query
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 727, in _read_query_result
result.read()
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 1066, in read
first_packet = self.connection._read_packet()
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 683, in _read_packet
packet.check_error()
File "/usr/local/lib/python2.7/dist-packages/pymysql/protocol.py", line 220, in check_error
err.raise_mysql_exception(self._data)
File "/usr/local/lib/python2.7/dist-packages/pymysql/err.py", line 109, in raise_mysql_exception
raise errorclass(errno, errval)
pymysql.err.ProgrammingError: (1064, u"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE itemName = 'Aluminium')' at line 1")
感谢您的任何想法。
您的完全限定查询类似于
UPDATE marketPricesAvg
SET avg1234 = (
SELECT AVG(price) FROM marketPrices
WHERE itemName = 'Aluminium' AND
((NOW() - marketPrices.datetime) < '100') WHERE itemName = 'Aluminium'
);
编辑:
应该是
(NOW() - marketPrices.datetime) < %s) WHERE itemName = %s
最后的括号放错地方了
我只是看不出这个错误的原因。我在 phpMyAdmin 中尝试了相同的 SQL,它工作得很好,但是从 Python.
尝试时失败了Python 代码 SQL 查询:
cursor.execute("UPDATE marketPricesAvg SET avg%sh=(SELECT AVG(price) FROM marketPrices WHERE itemName = %s AND ((NOW() - marketPrices.datetime) < %s) WHERE itemName = %s)", (time, itemName, time_sec, itemName))
错误信息:
Traceback (most recent call last):
File "/root/marketprices/insert.py", line 42, in <module>
calculate_avg(itemName, time)
File "/root/marketprices/insert.py", line 29, in calculate_avg
cursor.execute("UPDATE marketPricesAvg SET avg%sh=(SELECT AVG(price) FROM marketPrices WHERE itemName = %s AND ((NOW() - marketPrices.datetime) < %s) WHERE itemName = %s)", (time, itemName, time_sec, itemName))
File "/usr/local/lib/python2.7/dist-packages/pymysql/cursors.py", line 170, in execute
result = self._query(query)
File "/usr/local/lib/python2.7/dist-packages/pymysql/cursors.py", line 328, in _query
conn.query(q)
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 516, in query
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 727, in _read_query_result
result.read()
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 1066, in read
first_packet = self.connection._read_packet()
File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 683, in _read_packet
packet.check_error()
File "/usr/local/lib/python2.7/dist-packages/pymysql/protocol.py", line 220, in check_error
err.raise_mysql_exception(self._data)
File "/usr/local/lib/python2.7/dist-packages/pymysql/err.py", line 109, in raise_mysql_exception
raise errorclass(errno, errval)
pymysql.err.ProgrammingError: (1064, u"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE itemName = 'Aluminium')' at line 1")
感谢您的任何想法。
您的完全限定查询类似于
UPDATE marketPricesAvg
SET avg1234 = (
SELECT AVG(price) FROM marketPrices
WHERE itemName = 'Aluminium' AND
((NOW() - marketPrices.datetime) < '100') WHERE itemName = 'Aluminium'
);
编辑: 应该是
(NOW() - marketPrices.datetime) < %s) WHERE itemName = %s
最后的括号放错地方了