批量插入

import pymysql
 
 
def insert_to_mysql(to_db_list):
  mysql_db = pymysql.connect(host="HOST_IP",port=3306,user="username",password="password",database="db",charset="utf8")
  cursor = mysql_db.cursor()
  sql = "INSERT INTO `your_db`.`your_table`(`colum1`,`colum2`,`colum3`) VALUES (%s,%s,%s)"
 
  try:
    # cursor.execute()
    cursor.executemany(sql,to_db_list) # 批量插入
     
    effect_rows = cursor.rowcount
     
    mysql_db.commit()
    cursor.close()
    print('資料庫新增成功，插入 {}條資料'.format(effect_rows))
    return effect_rows
  except Exception as e:
    mysql_db.rollback()
    print('資料庫執行失敗')
    print(e)
    return 0
 
my_list = []
my_list.append(('v1','v2','v3'))
 
cnt = insert_to_mysql(my_list)

查詢

def get_id_name():
  cursor = mysql_db.cursor()
  sql = "select id,name from `your_db`.`table`"
  cursor.execute(sql)
  res = cursor.fetchall()
 
  # print(res)
  return res
 
 
my_list = get_id_name()
 
for index in range(len(my_list)):
  print(my_list[index][0]) # id
  print(my_list[index][1]) # name

更新

def update_by_id(update_list):
  """根據ID更新col1,col2,col3
  list 依次為 col1,col3,id
 
  :param update_list:
  :return:
  """
 
  cursor = mysql_db.cursor()
  sql = "UPDATE `your_db`.`table` SET col1=(%s),col2=(%s),col3=(%s) WHERE id=(%s)"
 
  try:
    # cursor.execute()
    cursor.executemany(sql,update_list) # 批量插入
    mysql_db.commit()
    cursor.close()
    print('資料庫更新成功')
  except Exception as e:
    mysql_db.rollback()
    print('資料庫更新失敗')
    print(e)
 
my_list = []
my_list.append(('v1','v3','id'))
update_by_id(my_list)

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