– Spark
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如何在MySQL数据库中切换数据表并使用Python脚本存储Spark作业结果?
要使用Python脚本访问MySQL数据库,首先需要安装pymysql模块。在命令行中输入以下命令进行安装:,,“bash,pip install pymysql,`,,可以使用以下代码连接到MySQL数据库并执行查询:,,`python,import pymysql,,# 连接数据库,connection = pymysql.connect(host=’localhost’,, user=’your_username’,, password=’your_password’,, db=’your_database’,, charset=’utf8mb4′,, cursorclass=pymysql.cursors.DictCursor),,try:, with connection.cursor() as cursor:, # 执行查询, sql = “SELECT * FROM your_table”, cursor.execute(sql), result = cursor.fetchall(), for row in result:, print(row),finally:, connection.close(),“