使用Python将特定的MySQL数据从表格导出到Excel
我相当新的mysql-connector-python。 我正在学习如何使用python使我的工作更容易一些。 能否请你帮忙？
我有一个表的数据库。我们称之为'table1'表是用这样的列分解：
sent_time | delivered_time |id1_active |id2_active |id3_active |id1_inactive |id2_inactive |id3_inactive |location_active |location_inactive sent_time | delivered_time |id1_active |id2_active |id3_active |id1_inactive |id2_inactive |id3_inactive |location_active |location_inactive … ..“Lots more
可以说，这是两个或两个以上的客户之间交付货物。 每个客户有三个ID＃。
现在我想看看是否至less可以打印出所有的id1_active和id2_active …理想情况下，我想用任何一列中提到的特定ID打印整行…你可以看看下面的内容，做错了，也许帮我找出一个解决scheme，为我的理想目标？
我不断收到这个错误
第18行，在c.writerow（[id1_active，id2_active]）
TypeError：'str'不支持缓冲区接口
这是我迄今为止…
我创build了一个“config.ini”文件，让我的生活变得更轻松
[mysql] host = localhost database = db_name user = root password = blahblah
我创build了一个'python_mysql_dbconfig.py'
from configparser import ConfigParser def read_db_config(filename='config.ini', section='mysql'): “”” Read database configuration file and return a dictionary object :param filename: name of the configuration file :param section: section of database configuration :return: a dictionary of database parameters “”” # create parser and read ini configuration file parser = ConfigParser() parser.read(filename) # get section, default to mysql db = {} if parser.has_section(section): items = parser.items(section) for item in items: db[item[0]] = item[1] else: raise Exception('{0} not found in the {1} file'.format(section, filename)) return db
然后我创build了“export.py”
from mysql.connector import MySQLConnection, Error from python_mysql_dbconfig import read_db_config import csv filename=open('test.csv','wb') c=csv.writer(filename) db_config = read_db_config() conn = MySQLConnection(**db_config) cursor = conn.cursor() query = (“SELECT id1_active, id2_active from table1”) cursor.execute(query) for id1_active, id2_active in cursor: c.writerow([id1_active,id2_active] ) cursor.close() filename.close() cnn.close()
你能告诉我我做错了什么吗？
您需要获取数据，并通过数据而不是光标循环：
from mysql.connector import MySQLConnection, Error from python_mysql_dbconfig import read_db_config import csv filename=open('test.csv','wb') c=csv.writer(filename) db_config = read_db_config() conn = MySQLConnection(**db_config) cursor = conn.cursor() query = (“SELECT id1_active, id2_active from table1”) cursor.execute(query) #You first need to fetch data data = cursor.fetchall() for item in data: c.writerow(item ) cursor.close() filename.close() cnn.close()
我开始使用xlswriter来解决问题。 我能够从表中导出所有的数据，但是现在我不能让我的代码拉取两个date之间的数据….它一直告诉我
Traceback (most recent call last): File "C:\Python34\timerange.py", line 36, in <module> start_date = datetime.datetime(userIn,timeShape) AttributeError: type object 'datetime.datetime' has no attribute 'datetime'
请你能告诉我我做错了什么吗？
# Establish a MySQL connection from mysql.connector import MySQLConnection, Error from python_mysql_dbconfig import read_db_config db_config = read_db_config() conn = MySQLConnection(**db_config) import xlsxwriter from xlsxwriter.workbook import Workbook import datetime from datetime import datetime cursor = conn.cursor() #creates the workbook workbook = xlsxwriter.Workbook('imhere.xlsx') worksheet = workbook.add_worksheet() #formatting definitions bold = workbook.add_format({'bold': True}) date_format = workbook.add_format({'num_format': 'yyyy-mm-dd hh:mm:ss'}) timeShape = '%Y-%m-%d %H:%M:%S' query = ("SELECT sent_time, delivered_time, customer_name, id1_active, id2_active, id3_active, id1_inactive, id2_inactive, id3_inactive, location_active, location_inactive FROM table1 ") "WHERE sent_time BETWEEN %s AND %s" userIn = input("Type Start Date (YYYY-MM-DD hh:mm:ss):") userEnd = input("Type End Date (YYYY-MM-DD hh:mm:ss):") start_date = datetime.datetime(userIn,timeShape) end_date = datetime.datetime(userEnd, timeShape) # Execute sql Query cursor.execute(query, (start_date, end_date)) #result = cursor.fetchall() #sets up the header row worksheet.write('A1','sent_time',bold) worksheet.write('B1', 'delivered_time',bold) worksheet.write('C1', 'customer_name',bold) worksheet.write('D1', 'id1_active',bold) worksheet.write('E1', 'id2_active',bold) worksheet.write('F1', 'id3_active',bold) worksheet.write('G1', 'id1_inactive',bold) worksheet.write('H1', 'id2_inactive',bold) worksheet.write('I1', 'id3_inactive',bold) worksheet.write('J1', 'location_active',bold) worksheet.write('K1', 'location_inactive',bold) worksheet.autofilter('A1:K1') print("sent_time", "delivered_time", "customer_name", "id1_active", "id2_active", "id3_active", "id1_inactive", "id2_inactive", "id3_inactive", "location_active", "location_inactive") for row in cursor: print(row[0], row[1], row[2], row[3], row[4], row[5], row[6], row[7], row[8], row[9],row[10]) # Create a For loop to iterate through each row in the XLS file, starting at row 2 to skip the headers for r, row in enumerate(cursor, start=1): #where you want to start printing results inside workbook for c, col in enumerate(row): worksheet.write_datetime(r,0,row[0], date_format) worksheet.write_datetime(r,1, row[1], date_format) worksheet.write(r,2, row[2]) worksheet.write(r,3, row[3]) worksheet.write(r,4, row[4]) worksheet.write(r,5, row[5]) worksheet.write(r,6, row[6]) worksheet.write(r,7, row[7]) worksheet.write(r,8, row[8]) worksheet.write(r,9, row[9]) worksheet.write(r,10, row[10]) #close out everything and save cursor.close() workbook.close() conn.close() #print number of rows and bye-bye message print ("- - - - - - - - - - - - -") rows = len(result) print ("I just imported "+ str(rows) + " rows from MySQL!") print ("") print ("Good to Go!!!") print ("")