我不能让Python使用mySQL

Question

好吧，我先说“我是Python新手”。我使用PyCharm运行这个程序，我正在构建一个数据库（本地托管的mySQL）。在

不幸的是，我在使用Python将数据导入数据库时遇到了问题，但是我能够通过phpmyadminwebgui在SQL中插入数据。我一定漏掉了一些明显的东西。我在用mysql.connector“PyCharm的插件。这是相关的代码。在

那么，一开始我导入模块？像这样

import mysql.connector     

这段代码是在一对while循环中引用的

^{pr2}$

请不要因为我的写作方式活着吃掉我，我是新来的：）
其他重要因素

• 我可以让它输入几次数据（但它作为一个空值传入SQL。我猜我传递的数字格式不对？或者与数据库排序有关吗？）在
• 我还尝试了一些PyCharm的不同插件（它们似乎都是以类似的方式实现的）。在
• 我试过了，在插入的变量名上加引号和不加引号，我已经试了太多了，我真是束手无策。在

至于错误代码，这是目前的情况

    C:\Users\logge\PycharmProjects\untitled3\venv\Scripts\python.exe C:/Users/logge/PycharmProjects/untitled3/main.py
Traceback (most recent call last):
  File "C:/Users/logge/PycharmProjects/untitled3/main.py", line 111, in <module>
    weather(1)
  File "C:/Users/logge/PycharmProjects/untitled3/main.py", line 101, in weather
    c.execute("INSERT INTO 'stations' ('dtime', 'tmp', 'apptmp', 'dewpoint', 'relhum', 'delta_t', 'wind_dir', 'wind_spd_kmh', 'wind_gust_kmh', 'wind_spd_kts', 'wind_gust_kts', 'press_qnh', 'press_msl', 'rainsince9am') VALUES (dtime1, tmp1, apptmp1, dewpoint1, relhum1, delta_t1, wind_dir1, wind_spd_kmh1, wind_gust_kmh1, wind_spd_kts1, wind_gust_kts1, press_qnh1, press_msl1, rainsince9am1)")
  File "C:\Users\logge\PycharmProjects\untitled3\venv\lib\site-packages\mysql\connector\cursor.py", line 561, in execute
    self._handle_result(self._connection.cmd_query(stmt))
  File "C:\Users\logge\PycharmProjects\untitled3\venv\lib\site-packages\mysql\connector\connection.py", line 525, in cmd_query
    result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query))
  File "C:\Users\logge\PycharmProjects\untitled3\venv\lib\site-packages\mysql\connector\connection.py", line 427, in _handle_result
    raise errors.get_exception(packet)
mysql.connector.errors.ProgrammingError: 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''stations' ('dtime', 'tmp', 'apptmp', 'dewpoint', 'relhum', 'delta_t', 'wind_dir' at line 1

Process finished with exit code 1     

错误代码中提到的“101行”是指以“c.execute…”开头的行。。。在我发布的代码的第二部分插入'。在

下面是我也尝试过的代码，只是想看看是否可以得到任何结果（但我仍然得到相同的错误）：

from __future__ import print_function
from datetime import date, datetime, timedelta
import mysql.connector

dtime1 = 1
tmp1 = 5
apptmp1 = 2
dewpoint1 = 64
relhum1 = 3
delta_t1 = 4
wind_dir1 = 5
wind_spd_kmh1 = 6
wind_gust_kmh1 = 7
wind_spd_kts1 = 8
wind_gust_kts1 = 9
press_qnh1 = 10
press_msl1 = 11
rainsince9am1 =12


cnx = mysql.connector.connect(host ='localhost', user = 'root', passwd= '', db='weather_test01')
cursor = cnx.cursor()

tomorrow = datetime.now().date() + timedelta(days=1)

add_employee = ("INSERT INTO stations "
               "(dtime, tmp, apptmp, dewpoint, relhum, delta_t, wind_dir, wind_spd_kmh, wind_gust_kmh, wind_spd_kts, wind_gust_kts, press_qnh, press_msl, rainsince9am) "
               "VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s,)")

data_employee = (dtime1, tmp1, apptmp1, dewpoint1, relhum1, delta_t1, wind_dir1, wind_spd_kmh1, wind_gust_kmh1, wind_spd_kts1, wind_gust_kts1, press_qnh1, press_msl1, rainsince9am1)

# Insert new employee
cursor.execute(add_employee, data_employee)
emp_no = cursor.lastrowid



# Make sure data is committed to the database
cnx.commit()

cursor.close()
cnx.close()         

如有任何帮助或建议，我们将不胜感激。我很高兴张贴整个代码，如果需要也。我只是不想把整件事搞得一团糟。在

Answer 1

下面的代码可以将SQL数据转换为NoSQL数据。MySQL和MongSQL服务器使用。 这是密码

    from os import getenv
    import pymssql
    import json 
    from pymongo import MongoClient

    server = "192.168.1.1"
    user = "root"
    password = "root"


    #MS SQL SERVER CONNECT 
    conn = pymssql.connect(server, user, password, "database_name")
    cursor = conn.cursor()

    #MONGODB CONNECT
    #27017 is default port for mongodb 
    conn = MongoClient('localhost',27017,username="user_name", password="password")
    db = conn['in']
    col = db['nclt_details']
    cursor.execute('SELECT * FROM collection_name')

    for row in cursor:
        data_h = dict()
        data_h['id'] =  row[0]
        data_h['case_no'] =  row[1]
        data_h['tp_no'] =  row[2]
        data_h['section'] =  row[3]
        data_h['purpose'] =  row[4]
        data_h['petitioner'] =  row[5]
        data_h['petitioner_others'] =  row[6]
        data_h['respondent'] =  row[7]
        data_h['respondent_others'] =  row[8]
        data_h['petitioner_advocate'] =  row[9]
        data_h['respondent_advocate'] =  row[10]
        data_h['Remarks'] = row[11]
        col.insert(data_h)
    conn.close()

Answer 2

我发现了你的错误。您已将输入数据引用为字符串（%s）。但你是在输入整数（数字）。在

如果你想把数字作为字符串，在第一段代码（你的）中，你需要放入str(variable)，而不仅仅是variable。在第二段代码中（从MySQL复制），可以用引号将变量声明为variable = "0000"。在

如果要在代码中使用数字，请将表结构更改为INTEGER或{}，而不是VARCHAR或{}。在

我假设表存在并且所有字段都存在，因为连接到数据库并查找表没有错误。在