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我的目標是從Excel工作表中讀取數據並在SQL服務器上創建數據庫。我正在嘗試使用SQLalchemy編寫示例代碼，而我對它很陌生。我至今的代碼是：Autoflush錯誤和filter_by（）查詢給出意想不到的結果
import time
from sqlalchemy import create_engine, Column, Integer, Date, String, Table, MetaData,table
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
engine = create_engine('sqlite:///:memory:', echo = False)
Base = declarative_base()
class blc(Base):
__tablename__ = 'BLC_Databse'
date = Column(String, primary_key = True)
RES = Column(String)
BTTLCOLUMN = Column(String)
CS_HR = Column(Integer)
Base.metadata.create_all(engine)
sample = blc(date=time.strftime("%m/%d/%y") , RES = 'BDY_21', BTTLCOLUMN = '2075', CS_HR = 563)
Session = sessionmaker(bind=engine)
session = Session()
sample2 = blc(date=time.strftime("%m/%d/%y") , RES = 'BDY_21', BTTLCOLUMN = '2076', CS_HR = 375)
session.add(sample2)
session.commit()
with session.no_autoflush:
result = session.query(blc).filter_by(RES = 'BDY_21').first()
print(result)
當我進行篩選查詢（這我假設它類似於其中SQL子句）它給<__main__.blc object at 0x00705770>錯誤 後來，我打算有插入子句放在一個循環中，它將從Excel工作表讀取數據。