使用Python将CSV数据导入postgreSQL

时间:2016-10-31 14:52:20

标签: python postgresql csv

我正在尝试使用Python将CSV数据导入postgreSQL。我尝试在Stack Overflow上搜索此问题,但无法找到适合我情况的任何结果。我的CSV文件中有空列,当我运行代码时,它会为没有信息的空白列抛出错误。我希望能够告诉Python忽略空白列并继续下一列。并非所有列都包含数据,因此我希望得到您的帮助,以实现一个解决方案,我可以在脚本中为没有数据的列编辑该解决方案。我是编程新手所以请原谅我的愚蠢。

import psycopg2
import csv

csv_data = csv.reader(file('SampleData1.csv'))

database = psycopg2.connect (database = "**", user="**", password="***", host="**", port="**")

cursor = database.cursor()
delete = """Drop table if exists "Real".SampleDataOne"""
print (delete)

mydata = cursor.execute(delete)

cursor.execute("""Create Table "Real".SampleDataOne
              (Username varchar(55),
              TimeStamp timestamp,
              Week date,
              Actual_Sale_Date date,
              Estimated_Closing_Date date, 
              Last_Name_First_Name varchar(55),
               Ages varchar(55)
               );""")

print "Table created successfully" 

next(csv_data)
for row in csv_data:

cursor.execute("""Insert into "Real".SampleDataOne(Username,TimeStamp,  Week,   Actual_Sale_Date, Estimated_Closing_Date, \
               Last_Name_First_Name,   Ages)"""\
               """VALUES (%s,%s,%s,%s,%s,%s,%s)""",
               row)

cursor.close()
database.commit()
database.close()

print "CSV imported"

错误如下:在' False'之后的列旁边有一个点(^)。

Drop table if exists "Real".SampleDataOne
Table created successfully

Traceback (most recent call last):
File "C:/Users/Desktop/Programming/SampleData1Python.py", line 61,   in <module>
row)
DataError: invalid input syntax for type date: ""
LINE 1: ...****@jcp.com','****@comcast.net','No','FALSE','','','')

1 个答案:

答案 0 :(得分:1)

http://initd.org/psycopg/docs/cursor.html#cursor.copy_from

f = open('SampleData1.csv')
cursor.copy_from(f, '"Real".sampledataone', sep=',', null='')

如果您提供简单的csv数据,而且数据中没有引号或逗号,则应该可以正常工作。