很抱歉,如果這個問題是愚蠢的,我AM 2天進學習python
的Python不能修改MySQL,但用戶可以
我一直在打我的頭撞牆試圖理解爲什麼我的python
腳本可以運行SELECT
聲明但不是UPDATE
或DELETE
陳述。
我相信這將是一個MySQL
問題,而不是一個Python
的問題,但我不再能夠排除故障
pcheck.py
import re
import time
import json
import MySQLdb
import requests
from array import *
conn = MySQLdb.connect([redacted])
cur = conn.cursor()
sql1 = "SELECT pkey,pmeta FROM table1 WHERE proced = 0 LIMIT 1"
cur.execute(sql1)
row = cur.fetchone()
while row is not None:
print "row is: ",row[0]
rchk = [
r"(SHA256|MD5)",
r"(abc|def)"
]
for trigger in rchk:
regexp = re.compile(trigger)
pval = row[1]
if regexp.search(pval) is not None:
print "matched on: ",row[0]
sql2 = """INSERT INTO table2 (drule,dval,dmeta) VALUES('%s', '%s', '%s')"""
try:
args2 = (trigger, pval, row[1])
cur.execute(sql2, args2)
print(cur._last_executed)
except UnicodeError:
print "pass-uni"
break
else:
pass
sql3 = """UPDATE table1 SET proced=1 WHERE pkey=%s"""
args3 = row[0]
cur.execute(sql3, args3)
print(cur._last_executed)
row = cur.fetchone()
sql3 = """DELETE FROM table1 WHERE proced=1 AND last_update < (NOW() - INTERVAL 6 MINUTE)"""
cur.execute(sql3)
print(cur._last_executed)
cur.close()
conn.close()
print "Finished"
和實際(和令人驚訝預期)輸出:
輸出
[email protected]:~/python$ python pcheck.py
row is: 0GqQ0d6B
UPDATE table1 SET proced=1 WHERE pkey='0GqQ0d6B'
DELETE FROM table1 WHERE proced=1 AND last_update < (NOW() - INTERVAL 6 MINUTE)
Finished
但是,數據庫未被更新。我檢查了該查詢是它使得到MySQL:
MySQL的登錄
"2015-12-14 22:53:56","localhost []","110","0","Query","SELECT `pkey`,`pmeta` FROM `table1` WHERE `proced`=0 LIMIT 200"
"2015-12-14 22:53:57","localhost []","110","0","Query","UPDATE `table1` SET `proced`=1 WHERE `pkey`='0GqQ0d6B'"
"2015-12-14 22:53:57","localhost []","110","0","Query","DELETE FROM table1 WHERE proced=1 AND last_update < (NOW() - INTERVAL 6 MINUTE)"
然而,對於行0GqQ0d6B proced
值仍不1
如果我讓通過SQLyog的同一查詢(登錄以用戶身份)查詢按預期工作。
進行更改後提交光標。 –
使您的SQL查詢成爲Unicode字符串以減少UnicodeExceptions:「u」「」INSERT INTO table2(drule,dval,dmeta)VALUES('%s','%s','%s')「」「 –
@ BobDylan工作得非常完美。在任何修改後,我是否總是「提交」「遊標」? –