方法一 通過dataframe 存入oracle 

#直接將dataframe 存入oracle  cx_Oracle 6.0b1處於測試階段，我建議使用官方發行版5.3。
import cx_Oracle
conn_string='oracle+cx_oracle://xxx:[email protected]:1234/xxx'
from sqlalchemy import create_engine  
yconnect = create_engine(conn_string,echo=False)  
new_data.to_sql('ABC', con=conn_string,if_exists='append',index_label='id')#將檔案直接寫入oracle，只能寫入mysql，不能寫入oracle
engine.excute("SELECT * FROM ABC").fetchall()
#參考連結 https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.to_sql.html
 

方法二 通過csv檔案存入oracle

#將資料以dataframe的形式存入csv
new_data=df(new_data)
csv_name = 'CLUSTER_RESULTS.csv'
new_data.to_csv(csv_name,encoding='gbk')

#已經建立好資料庫，
#本打算通過python建立資料庫，但是，python不能執行多條sql語句，只能通過sql指令碼建立資料庫。


# coding=utf-8
import cx_Oracle
import csv
import xlrd
import os 
import datetime
class ImportOracle(object):
    def inoracle(self):
        pass
    def connOracle(self):
        os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.utf8'
        conn= cx_Oracle.connect("XXX", "XXX", '192.168.1.123:1234/XXXX')
        cursor=conn.cursor()
        sql='select * from %s'%(self.table_name)
        cursor.execute(sql)
        try:
            sql='truncate table %s'%(self.table_name)
            cursor.execute(sql)
        except  cx_Oracle.Error as e:
            print(e)
            print("......")
        finally: 
            a=[':%s'%i for i in range(len(self.title)+1)]
            value=','.join(a[1:])
            sql='insert into %s values(%s)'%(self.table_name,value)
            cursor.prepare(sql)
            cursor.executemany(None, self.data)
            cursor.close()
            conn.commit()
            conn.close()
            
class ImportOracleCsv(ImportOracle):
    def inoracle(self):
        with open(self.filename,'r') as f:
            reader=csv.reader(f)
            contents=[i for i in reader]
 
            title=contents[0]
            data=contents[1:]
 
        return (title,data)
 
class ImportOracleExcel(ImportOracle):
    def inoracle(self):
        wb=xlrd.open_workbook(self.filename)
        sheet1=wb.sheet_by_index(0)
        title=sheet1.row_values(0)
        data=[sheet1.row_values(row) for row in range(1,sheet1.nrows)]
        return (title,data)
class ImportError(ImportOracle):
    def inoracle(self):
        print('Undefine file type')
        return 0
class ChooseFactory(object):
    choose={}
    choose['csv']=ImportOracleCsv()
    choose['xlsx']=ImportOracleExcel()
    choose['xls']=ImportOracleExcel()
    def choosefile(self,ch):
        if ch in self.choose:
            op=self.choose[ch]
        else:
            op=ImportError()
        return op
    
    
if __name__=="__main__":
 
    file_name=csv_name
    table_name='CBA'
    op=file_name.split('.')[-1]
    factory=ChooseFactory()
    cal=factory.choosefile(op)
    cal.filename=file_name

    (cal.title,cal.data)=cal.inoracle()
    cal.table_name=table_name
    cal.connOracle()

os.remove(csv_name)