Question

我在csv中有这样的数据

RegisterDate    StoreID ProductID   ProductType Quantity
30.12.2013      1002    00000576    001         10
1.1.2014        1002    00008577    001        20
2.1.2014        1002    00002917    002        12
3.1.2014        1002    00007542    003         1
4.1.2014        1002    00000964    002         1

我想创建一个SQL表，我使用Python来填充表。以下是我的代码：

import pymysql as MS
import pandas as pd

db = MS.connect(host="localhost",user="root",passwd="passwd",db="db")
cursor = db.cursor()
cursor.execute("create table IF NOT EXISTS sales (productID INT (25), registerDate DATE, storeID INT(5), productType INT (3), Quantity INT (100));")

df = pd.read_csv('C:/Users/data.csv', encoding='latin-1')
for i in range (len(df)):
    date = pd.to_datetime(df['RegisterDate'][i], format='%d.%m.%Y') # Converting the field value to datetime
    data = [int(df['ProductID'][i]), date, int(df['StoreID'][i]), int(df['ProductType'][i]), int(df['Quantity'][i]]
    cursor.execute('INSERT INTO sales(productID, registerDate, storeID, productType, Quantity )' 'VALUES("%s", "%s", "%s", "%s", "%s"  )', data)

db.commit()
cursor.close()

但是我收到以下错误：

    Traceback (most recent call last):
  File "C:/Users/PycharmProjects/testproject/database.py", line 17, in <module>
    cursor.execute('INSERT INTO sales(productID, registerDate, storeID, productType, Quantity )' 'VALUES("%s", "%s", "%s", "%s", "%s"  )', data)
  File "C:\Python\Python35\lib\site-packages\pymysql\cursors.py", line 164, in execute
    query = self.mogrify(query, args)
  File "C:\Python\Python35\lib\site-packages\pymysql\cursors.py", line 143, in mogrify
    query = query % self._escape_args(args, conn)
  File "C:\Python\Python35\lib\site-packages\pymysql\cursors.py", line 118, in _escape_args
    return tuple(conn.literal(arg) for arg in args)
  File "C:\Python\Python35\lib\site-packages\pymysql\cursors.py", line 118, in <genexpr>
    return tuple(conn.literal(arg) for arg in args)
  File "C:\Python\Python35\lib\site-packages\pymysql\connections.py", line 821, in literal
    return self.escape(obj, self.encoders)
  File "C:\Python\Python35\lib\site-packages\pymysql\connections.py", line 814, in escape
    return escape_item(obj, self.charset, mapping=mapping)
  File "C:\Python\Python35\lib\site-packages\pymysql\converters.py", line 27, in escape_item
    val = encoder(val, mapping)
  File "C:\Python\Python35\lib\site-packages\pymysql\converters.py", line 110, in escape_unicode
    return u"'%s'" % _escape_unicode(value)
  File "C:\Python\Python35\lib\site-packages\pymysql\converters.py", line 73, in _escape_unicode
    return value.translate(_escape_table)
AttributeError: 'Timestamp' object has no attribute 'translate'

我搜索了上述错误，但没有相关的答案。如何用其他栏填写日期？

Answer 1

我会将您的datetime对象转换为python中特定格式的字符串，以便使用strftime('%Y-%m-%d')方法插入MySQL：

data = [int(df['ProductID'][i]), date.strftime('%Y-%m-%d'), int(df['StoreID'][i]), int(df['ProductType'][i]), int(df['Quantity'][i]]

这样你传递的格式为'%Y-%m-%d'的字符串符合MySQL对日期文字的标准定义。

在csv中将日期插入SQL的列中

1 个答案: