使用Python将Excel转换为PostgreSQL [英] Excel to PostgreSQL using Python

问题描述

我是Python的新手，我正尝试将excel直接导出到没有CSV文件的postgreSQL中.

I'm new to Python and I'm trying to export excel directly into postgreSQL without CSV files.

我不知道是否可能.

我一直遇到错误'列"daily_date"的类型为date，但表达式的类型为数字'.

import psycopg2
import xlrd

book = xlrd.open_workbook("pytest.xlsx")
sheet = book.sheet_by_name("Source")

database = psycopg2.connect (database = "RunP", user="postgres", password="", host="localhost", port="5432")

cursor = database.cursor()

query = """INSERT INTO orders (Daily_Date, Days, First, Second, Leader) VALUES (%s, %s, %s, %s, %s)"""

for r in range(1, sheet.nrows):
    Daily_Date = sheet.cell(r,0).value
    Days = sheet.cell(r,1).value
    First = sheet.cell(r,2).value
    Second = sheet.cell(r,3).value
    Leader = sheet.cell(r,4).value

    values = (Daily_Date, Days, First, Second, Leader)

    cursor.execute(query, values)

cursor.close()

database.commit()

database.close()

print ""
print ""
columns = str(sheet.ncols)
rows = str(sheet.nrows)
print "I just imported Excel into postgreSQL" 

推荐答案

Excel将日期时间存储为数字.您可以使用 xlrd.xldate.xldate_as_datetime 进行转换:

Excel stores datetimes as numbers. You can use xlrd.xldate.xldate_as_datetime to convert:

    Daily_Date = xlrd.xldate.xldate_as_datetime(sheet.cell(r,0).value,book.datemode)

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