python - 如何使用 PYTHON 将 mySQL 表导出为 CSV 文件

Question

我有一个很小的表，有 5 列(包括主键)，我正在尝试将数据导出到 CSV 文件中

import csv
with DbManager(#MY DATA BASE INFO) as db:
            SQLview = 'SELECT * FROM mytable;'
            db.cursor.execute(SQLview)
            writer = csv.writer(db)
            writer.writerow([ i[0] for i in cursor.description ]) 
            writer.writerows(cursor.fetchall())

但是我收到错误

writer = csv.writer(db)
TypeError: argument 1 must have a "write" method

TIA 寻求任何帮助，或者您能否为我指明正确的方向:)

Answer 1

您需要打开一个文件来输出数据:

with DbManager(#MY DATA BASE INFO) as db:
    SQLview = 'SELECT * FROM mytable;'
    cursor = db.cursor()
    cursor.execute(SQLview)
    with open('output.csv', 'w') as csvfile:
        writer = csv.writer(csvfile)
        writer.writerow([ i[0] for i in cursor.description ]) 
        writer.writerows(cursor.fetchall())