读取Oracle数据写入TXT

#python操作Oracle依赖cx_Oracle

#pip install cx_Oracle

#pip install pandas

import os

from pandas.core.frame import DataFrame

import cx_Oracle

import pandas as pd

def query(ip,port,sid,username,password,sql):

    dsn =  cx_Oracle.makedsn(ip, port, sid)

    conn = cx_Oracle.connect(username, password, dsn)

    results = pd.read_sql(sql,conn)

    conn.close

    return results

def writeQueryToTxt(results:DataFrame,filedir):

    results.to_csv(filedir,sep='\001',index=False,header=False)

if __name__ == "__main__":

    sql = "select * from test"

    df = query("127.0.0.1","1521","xe","ods","ods",sql)

    df['BIRTH'] = df['BIRTH'].apply(lambda x:x.strftime('%Y-%m-%d'))

    writeQueryToTxt(df,"./test.txt")