# 把mysql資料庫中的資料匯入mongodb中
import pymysql
import pymongo

# 建立mysql的資料庫連線
con = pymysql.connect(host='localhost', port=3306, user='root', password='123456', db='pp')
# 獲取遊標
cur = con.cursor(cursor=pymysql.cursors.DictCursor)
# 查詢student表
try:
  cur.execute('select * from student')
  # 建立mongodb資料庫連線
  client = pymongo.MongoClient(host='
 
localhost', port=27017)
  # 獲取資料庫
  db = client['pp']#或者db=client.pp,相當於資料庫中的use pp;
  for row in cur.fetchall():
    row['birthday'] = str(row['birthday']) #因為mongodb沒有datetime型別，因此必須先轉為字串才能匯入mongodb,否則可省略此步
    db.student.insert_one(row)
except Exception as e:
  print(e)
finally:
  con.close()
  client.close()
 
#The achievement is attributed to teacher Peng!