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python连接oracle导出数据文件

python连接oracle导出数据文件

作者: 我爱学python | 来源:发表于2020-01-05 15:12 被阅读0次

    python连接oracle,感觉table_list文件内的表名,来卸载数据文件

    主脚本:

    '''
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    '''
    import os
    import logging
    import sys
    import configparser
    import subprocess
    import cx_Oracle
    
    #判断输入参数个数
    class param():
        def check_para(self):
            if len(sys.argv) != 1:
                 print("请输入正确的参数:yyyymmdd")
                 exit(1)
            else:
                print("继续执行")
    
    #根据配置文件获取登录信息
    class get_dbini():
        def get_db(self):
            config=configparser.ConfigParser()
            filepath="db.ini"
            if os.path.exists(filepath):
                config.read_file(open(filepath))
                dbinfo=[config.get("db_oracle","username"),\
                        config.get("db_oracle","password"),\
                        config.get("db_oracle","ip"),\
                        config.get("db_oracle","dbsid")]
            else:
                loginfo.info("没有那个配置文件")
                sys.exit(4)
            #声明使用全局变量
            global username,password,ip,dbsid
            username=dbinfo[0]
            password=dbinfo[1]
            ip=dbinfo[2]
            dbsid=dbinfo[3]
            loginfo.info(username+password+ip+dbsid)
                        
    #导出表数据
    class exp_date():
       def exp_table(self):
         with open('table_list','r') as f:
            list = f.readlines()
         for i in list:
           tablename = i.rstrip('\n')
           exportquery='sqluldr2 user='+username+'/'+password+'@'+ip+':1521/'+dbsid+' query="select * from '+tablename+';" head=no file='+tablename+'.dat field=0x03 record=0x030x0a safe=yes'
           loginfo.info("开始导出数据: exportquery= "+exportquery)
           flag= subprocess.check_call(exportquery,shell=True)
           loginfo.info(flag)
            
    #打印日志
    class log_set():
       def logger_set(self):
         logger=logging.getLogger('mylogger')
         logger.setLevel(logging.DEBUG)
         
         fh=logging.FileHandler('a.log','w')
         fh.setLevel(logging.INFO)
         
         ch=logging.StreamHandler()
         ch.setLevel(logging.ERROR)
    
         formatter = logging.Formatter('%(asctime)s -%(name)s -%(levelname)s - %(message)s')
         
         fh.setFormatter(formatter)
         ch.setFormatter(formatter)
         
         logger.addHandler(fh)
         logger.addHandler(ch)
         return logger
         
    if __name__=='__main__':
        loginfo=log_set().logger_set()
        param().check_para()
        get_dbini().get_db()
        exp_date().exp_table()
    

    DB配置文件内容:

    db.ini

    [db_oracle]
    username=c##scott
    password=tiger
    ip=192.168.1.250
    dbsid=orcl
    

    表名字的配置文件:

    table_list

    BONUS
    DEPT
    EMP
    LEAD_TABLE
    SALGRADE
    T1
    TB_USER
    TEST
    XGJ
    XGJ_2
    

    运行结果:

    [oracle@master2 tmp]$ python3 c.py 
    继续执行
    rows exported at 2019-01-22 17:51:51, size 0 MB.
             output file BONUS.dat closed at 0 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file DEPT.dat closed at 4 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file EMP.dat closed at 12 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file LEAD_TABLE.dat closed at 10 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file SALGRADE.dat closed at 5 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file T1.dat closed at 5 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file TB_USER.dat closed at 10 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file TEST.dat closed at 8 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file XGJ.dat closed at 9 rows, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
    rows exported at 2019-01-22 17:51:52, size 0 MB.
             output file XGJ_2.dat closed at 8 rows, size 0 MB.
    

    查看日志:

    [oracle@master2 tmp]$ more a.log
    2019-01-22 17:51:51,858 -mylogger -INFO - c##scotttiger192.168.1.250orcl
    2019-01-22 17:51:51,858 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from BONUS;" head=no file=BON
    US.dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:51,949 -mylogger -INFO - 0
    2019-01-22 17:51:51,949 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from DEPT;" head=no file=DEPT
    .dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,038 -mylogger -INFO - 0
    2019-01-22 17:51:52,038 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from EMP;" head=no file=EMP.d
    at field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,129 -mylogger -INFO - 0
    2019-01-22 17:51:52,129 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from LEAD_TABLE;" head=no fil
    e=LEAD_TABLE.dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,299 -mylogger -INFO - 0
    2019-01-22 17:51:52,300 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from SALGRADE;" head=no file=
    SALGRADE.dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,401 -mylogger -INFO - 0
    2019-01-22 17:51:52,402 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from T1;" head=no file=T1.dat
     field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,490 -mylogger -INFO - 0
    2019-01-22 17:51:52,490 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from TB_USER;" head=no file=T
    B_USER.dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,578 -mylogger -INFO - 0
    2019-01-22 17:51:52,578 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from TEST;" head=no file=TEST
    .dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,665 -mylogger -INFO - 0
    2019-01-22 17:51:52,665 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from XGJ;" head=no file=XGJ.d
    at field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,771 -mylogger -INFO - 0
    2019-01-22 17:51:52,771 -mylogger -INFO - 开始导出数据: exportquery= sqluldr2 user=c##scott/tiger@192.168.1.250:1521/orcl query="select * from XGJ_2;" head=no file=XGJ
    _2.dat field=0x03 record=0x030x0a safe=yes
    2019-01-22 17:51:52,856 -mylogger -INFO - 0
    

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