如何在Python中从数据库创建CSV文件? [英] How do I create a CSV file from database in Python?
问题描述
我有一个名为clients的Sqlite 3和/或MySQL表。
使用python 2.6,如何创建一个名为Clients100914.csv的csv文件标题?
excel dialect ...
Sql执行:select *只提供表数据,但我想使用表头。
如何创建记录集以获取表标题。表头应该直接来自sql不是写在python。
w = csv.writer(open(Fn,'wb'),dialect ='excel')
w.writelines(header_row)
#Fetch into sqld
w.writerows(sqld)
这段代码让我打开文件,没有标题。也不能弄清楚如何使用文件作为日志。
import csv
/ pre>
import sqlite3
从glob import glob;从os.path导入expanduser
conn = sqlite3.connect(#打开places.sqlite从一个Firefox配置文件
glob(expanduser('〜/ .mozilla / firefox / * / places.sqlite '))[0]
)
cursor = conn.cursor()
cursor.execute(select * from moz_places;)
#with open(out.csv ,w,newline ='')as csv_file:#Python 3 version
with open(out.csv,wb)as csv_file:#Python 2 version
csv_writer = csv。 (csv_file)
csv_writer.writerow([i [0] for i in cursor.description])#write headers
csv_writer.writerows(cursor)
PEP 249(DB API 2.0)提供了有关
cursor.description
的更多信息。I have a Sqlite 3 and/or MySQL table named "clients"..
Using python 2.6, How do I create a csv file named Clients100914.csv with headers? excel dialect...
The Sql execute: select * only gives table data, but I would like complete table with headers.
How do I create a record set to get table headers. The table headers should come directly from sql not written in python.
w = csv.writer(open(Fn,'wb'),dialect='excel') #w.writelines("header_row") #Fetch into sqld w.writerows(sqld)
This code leaves me with file open and no headers. Also cant get figure out how to use file as log.
解决方案import csv import sqlite3 from glob import glob; from os.path import expanduser conn = sqlite3.connect( # open "places.sqlite" from one of the Firefox profiles glob(expanduser('~/.mozilla/firefox/*/places.sqlite'))[0] ) cursor = conn.cursor() cursor.execute("select * from moz_places;") #with open("out.csv", "w", newline='') as csv_file: # Python 3 version with open("out.csv", "wb") as csv_file: # Python 2 version csv_writer = csv.writer(csv_file) csv_writer.writerow([i[0] for i in cursor.description]) # write headers csv_writer.writerows(cursor)
PEP 249 (DB API 2.0) has more information about
cursor.description
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