使用pymysql的 course.executemany(sql, update_list) 进行批量更新
- sql：更新一条的sql语句模板；
- update_list：一个列表套元组的结构；
示例：
db = pymysql.connect(user='root', password='mysql', database='test', host='127.0.0.1', port=3306, charset='utf8mb4')
name_list = ["re", "gh", "ds", "D"] # 存储name的值
age_list = ["10", "20", "30", "40"] # 存储age的值
id_list = ["1", "2", "3", "4"] # 存储id的值
val_list = [[name_list[i], age_list[i], id_list[i]] for i in range(len(id_list))]
print(val_list)
# [['re', '10', '1'], ['gh', '20', '2'], ['ds', '30', '3'], ['D', '40', '4']]
with db.cursor() as cursor:
try:
sql = "UPDATE test SET name=(%s), age=(%s) WHERE id=(%s)"
cursor.executemany(sql, val_list)
db.commit()
except:
db.rollback()
db.close()
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