SQL查询输出到.csv

Question

我正在从python API运行SQL查询，并且想要收集Structured（列标题下的数据）标题下的数据.CSV格式。

这是迄今为止我的代码。

sql = "SELECT id,author From researches WHERE id < 20 " 
cursor.execute(sql) 
data = cursor.fetchall() 
print (data) 
with open('metadata.csv', 'w', newline='') as f_handle: 
    writer = csv.writer(f_handle) 
    header = ['id', 'author'] 
    writer.writerow(header) 
    for row in data: 
     writer.writerow(row) 

现在正在打印控制台上的数据，但在.CSV没有得到文件这是我得到的output：

什么，我很想念？

Answer 1

这里是你正在尝试做一个简单的例子：

import sqlite3 as db 
import csv 

# Run your query, the result is stored as `data` 
with db.connect('vehicles.db') as conn: 
    cur = conn.cursor() 
    sql = "SELECT make, style, color, plate FROM vehicle_vehicle" 
    cur.execute(sql) 
    data = cur.fetchall() 

# Create the csv file 
with open('vehicle.csv', 'w', newline='') as f_handle: 
    writer = csv.writer(f_handle) 
    # Add the header/column names 
    header = ['make', 'style', 'color', 'plate'] 
    writer.writerow(header) 
    # Iterate over `data` and write to the csv file 
    for row in data: 
     writer.writerow(row)