Question

我想使用python将变量插入到MySQL查询中。我怎么能这样做？

我正在使用python 2.7。

import MySQLdb

db = MySQLdb.connect("host","root","password","database" )

cursor = db.cursor()

model=Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz

mode=("INSERT INTO machinedetails (ModelName) VALUES (%s)")

cursor.execute(mode,model)

data = cursor.fetchone()

print (data)

db.close()

-------------------------

Traceback (most recent call last):

File "System_Info.py", line 149, in <module>

 cursor.execute(mode,model)

 File "/usr/lib64/python2.7/site-packages/MySQLdb/cursors.py", line 187, in execute

query = query % tuple([db.literal(item) for item in args])\

TypeError: not all arguments converted during string formatting

Answer 1

我假设您的<?xml version="1.0" encoding="utf-8"?> <packages> <package id="Autofac" version="3.5.2" targetFramework="net451" /> <package id="Microsoft.Owin" version="3.1.0" targetFramework="net452" /> <package id="Microsoft.Owin.Host.HttpListener" version="3.0.1" targetFramework="net451" /> <package id="Microsoft.Owin.Hosting" version="3.1.0" targetFramework="net452" /> <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net451" /> <package id="Owin" version="1.0" targetFramework="net451" /> <package id="Topshelf" version="3.2.0" targetFramework="net451" /> </packages>列的数据类型为ModelName。把模型作为字符串。

varchar

您的查询应该像

model = "Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz"

对于数据类型为Integer和Varchar的多个列。

mode= "INSERT INTO machinedetails (ModelName) VALUES (%s)"%(model) cursor.execute(mode)

value1是Int，value2是String。希望这能解决你的问题。但我同意你不应该在生产代码中使用原始SQL的评论。

（并非在python中的字符串格式化期间转换所有参数）

1 个答案: