{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "b82fd271",
   "metadata": {},
   "outputs": [],
   "source": [
    "import pymysql\n",
    "import snowflake\n",
    "from faker import Faker\n",
    "fake = Faker('zh_CN')\n",
    "import random\n",
    "# 创建数据库连接\n",
    "connection = pymysql.connect(\n",
    "host='192.168.0.244',\n",
    "port=3300,\n",
    "user='root',\n",
    "password='hxyd1109',\n",
    "database='school_server',\n",
    "charset='utf8'\n",
    ")\n",
    "# 创建游标对象\n",
    "cursor = connection.cursor()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "759c550a",
   "metadata": {},
   "outputs": [],
   "source": [
    "def create_table(cursor,result):\n",
    "    \n",
    "    data = []\n",
    "    for i in result:\n",
    "        list_list = list(i)\n",
    "        des=cursor.description  # 获取表详情，字段名，长度，属性等\n",
    "        t = \",\".join([item[0] for item in des])\n",
    "        table_head = t.split(',')  # # 查询表列名 用,分割\n",
    "    \n",
    "        dict_result = dict(zip(table_head, list_list))  # 打包为元组的列表 再转换为字典\n",
    "        data.append(dict_result)  # 将字典添加到list_result中\n",
    "    return data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "977b832d",
   "metadata": {},
   "outputs": [],
   "source": [
    "sql='select * from class_attend limit 0,10'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "0318e673",
   "metadata": {},
   "outputs": [],
   "source": [
    "cursor.execute(sql)\n",
    "result = cursor.fetchall()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "7af746d4",
   "metadata": {},
   "outputs": [],
   "source": [
    "result = create_table(cursor,result)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "5bb61d61",
   "metadata": {},
   "outputs": [],
   "source": [
    "sql='''\n",
    "UPDATE class_attend \n",
    "SET \n",
    "    class_s_time = DATE_ADD(class_s_time, INTERVAL 28 DAY),\n",
    "    class_e_time = DATE_ADD(class_e_time, INTERVAL 28 DAY),\n",
    "    start_time = DATE_ADD(start_time, INTERVAL 28 DAY),\n",
    "    end_time = DATE_ADD(end_time, INTERVAL 28 DAY),\n",
    "    attend_date = DATE_ADD(attend_date, INTERVAL 28 DAY),\n",
    "    class_s_times = DATE_ADD(class_s_times, INTERVAL 28 DAY),\n",
    "    class_e_times = DATE_ADD(class_e_times, INTERVAL 28 DAY);\n",
    "'''\n",
    "cursor.execute(sql)\n",
    "connection.commit()"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "base",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.12.4"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}