本篇文章为大家展示了python中怎么利用cx_Oracle连接oracle数据库，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

“专业、务实、高效、创新、把客户的事当成自己的事”是我们每一个人一直以来坚持追求的企业文化。 成都创新互联是您可以信赖的网站建设服务商、专业的互联网服务提供商! 专注于网站设计制作、做网站、软件开发、设计服务业务。我们始终坚持以客户需求为导向，结合用户体验与视觉传达，提供有针对性的项目解决方案，提供专业性的建议，创新互联建站将不断地超越自我，追逐市场，引领市场！

直接使用：
    CheckOracle.py -H [remote_home] -u [oracle_user] -p [oracle_password] -s [oracle_SID] -i [information] [table_name]
   具体使用细节和例子，使用-h获取帮助         
其他python调用：
    1 可以在实例化对象时指定参数
    2 调用的函数为OraInfo()
    3 返回结果集

1. #!/usr/bin/env python3

2. #_*_coding:utf-8_*_

3. #Auth by raysuen

4. #v1

6. import cx_Oracle

7. import sys,re,datetime

10. class OracleConn(object): #封装类

11.     #存放连接信息的

12.     Info = {

13.         "host":"127.0.0.1", #远端oracle的host

14.         "port":1521, #远端oracle的port

15.         "OraSID":None, #远端oracle的SID

16.         "OraUser":None, #远端oracle的username

17.         "OraPasswd":None, #远端oracle的username对应的密码

18.         # "OraSchemas":None,

19.         "OraInfo":None, #想要获取远端数据库的那种信息

20.         "OraTable":None      #有关系的oracle的表名

21.             }

23.     def __init__(self,host=None,port=None,sid=None,orauser=None,orapwd=None,orainfo=None,oratable=None):

24.         if host != None:

25.             self.Info["host"] = host

26.         if sid != None:

27.             self.Info["OraSID"] = sid

28.         if port != None:

29.             self.Info["port"] = port

30.         if orauser != None:

31.             self.Info["OraUser"] = orauser

32.         if orapwd != None:

33.             self.Info["OraPasswd"] = orapwd

34.         if orainfo != None:

35.             self.Info["OraInfo"] = orainfo

36.         if oratable != None:

37.             self.Info["OraTable"] = oratable

40.     def Check_Info(self): #判断Info字典里面的key是否存在必要的值

41.         if self.Info["OraUser"] == None:

42.             print("You must specify a oracle username for connecting oracle.")

43.             print("If you don't know how to specify the parameters.You can -h to get help")

44.             exit(3)

45.         if self.Info["OraPasswd"] == None:

46.             print("You must specify a oracle password for connecting oracle.")

47.             print("If you don't know how to specify the parameters.You can -h to get help")

48.             exit(3)

49.         if self.Info["OraSID"] == None:

50.             print("You must specify a oracle SID for connecting oracle.")

51.             print("If you don't know how to specify the parameters.You can -h to get help")

52.             exit(3)

53.         if self.Info["OraInfo"] == None:

54.             print("You must specify a Information about oracle")

55.             print("If you don't know how to specify the parameters.You can -h to get help")

56.             exit(3)

58.     def ConnectOracle(self): #封装连接数据库的连接，并返回连接对象

59.         try:

60.             tnsname = cx_Oracle.makedsn(self.Info["host"], self.Info["port"], self.Info["OraSID"])

61.             ora = cx_Oracle.connect(self.Info["OraUser"], self.Info["OraPasswd"], tnsname)

62.         except Exception as e:

63.             print(e)

64.             exit(4)

65.         return ora

67.     def CloseOracle(self,oraCon): #封装管理数据库连接的函数

68.         oraCon.close()

70.     def ExecSql(self,SqlStr): #封装数据执行sql的函数

71.         try:

72.             ora = self.ConnectOracle()

73.             cursor = ora.cursor()

74.             cursor.execute(SqlStr)

75.             res = cursor.fetchall()

76.             cursor.close

77.             self.CloseOracle(ora)

78.         except Exception as e:

79.             print(e)

80.             exit(5)

81.         return res

84.     def GetTableSpace(self): #获取tablespace信息的函数

85.         sqlStr="""

86.               select  a.tablespace_name,

87.                      round(a.bytes_alloc / 1024 / 1024, 2) megs_alloc,

88.                      round(nvl(b.bytes_free, 0) / 1024 / 1024, 2) megs_free,

89.                      round((a.bytes_alloc - nvl(b.bytes_free, 0)) / 1024 / 1024, 2) megs_used,

90.                      round((nvl(b.bytes_free, 0) / a.bytes_alloc) * 100,2)||'%' Pct_Free,

91.                      100 - round((nvl(b.bytes_free, 0) / a.bytes_alloc) * 100,2)||'%' Pct_used,

92.                      round(maxbytes/1048576,2) Max,

93.                      round(round((a.bytes_alloc - nvl(b.bytes_free, 0)) / 1024 / 1024, 2) / round((case maxbytes when 0 then a.bytes_alloc else maxbytes end)/1048576,2) * 100,2) || '%' "USED_MAX%"

94.               from  ( select  f.tablespace_name,

95.                              sum(f.bytes) bytes_alloc,

96.                              sum(decode(f.autoextensible, 'YES',f.maxbytes,'NO', f.bytes)) maxbytes

97.                       from dba_data_files f

98.                       group by tablespace_name) a,

99.                     ( select  f.tablespace_name,

100.                              sum(f.bytes)  bytes_free

101.                       from dba_free_space f

102.                       group by tablespace_name) b

103.               where a.tablespace_name = b.tablespace_name (+)

104.               union all

105.               select h.tablespace_name,

106.                      round(sum(h.bytes_free + h.bytes_used) / 1048576, 2) megs_alloc,

107.                      round(sum((h.bytes_free + h.bytes_used) - nvl(p.bytes_used, 0)) / 1048576, 2) megs_free,

108.                      round(sum(nvl(p.bytes_used, 0))/ 1048576, 2) megs_used,

109.                      round((sum((h.bytes_free + h.bytes_used) - nvl(p.bytes_used, 0)) / sum(h.bytes_used + h.bytes_free)) * 100,2)||'%' Pct_Free,

110.                      100 - round((sum((h.bytes_free + h.bytes_used) - nvl(p.bytes_used, 0)) / sum(h.bytes_used + h.bytes_free)) * 100,2)||'%' pct_used,

111.                      round(sum(f.maxbytes) / 1048576, 2) max,

112.                      round(round(sum(nvl(p.bytes_used, 0))/ 1048576, 2)/round(sum(case f.maxbytes when 0 then (h.bytes_free + h.bytes_used) else f.maxbytes end) / 1048576, 2) * 100,2)||'%' "USED_MAX%"

113.               from   sys.v_$TEMP_SPACE_HEADER h, sys.v_$Temp_extent_pool p, dba_temp_files f

114.               where  p.file_id(+) = h.file_id

115.               and    p.tablespace_name(+) = h.tablespace_name

116.               and    f.file_id = h.file_id

117.               and    f.tablespace_name = h.tablespace_name

118.               group by h.tablespace_name

119.               ORDER BY 1

120.             """

122.         res = self.ExecSql(sqlStr)

123.         return res

125.     def PrintTablespace(self,res):

126.         headStr = """|%s|%s|%s|%s|%s|%s|%s|%s|"""%("tablespace_name".center(30),"megs_alloc".center(15),"megs_free".center(15),"megs_used".center(15),"Pct_Free".center(15),"Pct_used".center(15),"Max_MB".center(15),"USED_MAX_PCT".center(15))

127.         print("%s"%"".center(144,"-"))

128.         print(headStr)

129.         print("%s" % "".center(144, "-"))

130.         for t in res:

131.             print("|%s|%s|%s|%s|%s|%s|%s|%s|"%(t[0].center(30),str(t[1]).center(15),str(t[2]).center(15),str(t[3]).center(15),t[4].center(15),t[5].center(15),str(t[6]).center(15),t[7].center(15)))

132.         print("%s" % "".center(144, "-"))

134.     def GetAsmDiskGroup(self):

135.         sqlStr="""select name,total_mb,free_mb from v$asm_diskgroup"""

136.         res = self.ExecSql(sqlStr)

137.         return res

139.     def PrintAsmDiskGroup(self,res):

140.         print("%s" % "".center(50, "-"))

141.         print("|%s|%s|%s|"%("GROUP_NAME".center(20),"TOTAL_MB".center(15),"FREE_MB".center(15)))

142.         print("%s" % "".center(50, "-"))

143.         for t in res:

144.             print("|%s|%s|%s|"%(t[0].center(20),str(t[1]).center(15),str(t[2]).center(15)))

145.         print("%s" % "".center(50, "-"))

147.     def GetRedo(self):

148.         sqlStr="""

149.             select a.group#,a.BYTES/1024/1024 mb,b.MEMBER,a.thread#,a.sequence#,a.members,a.archived,a.status,a.first_time,a.next_time from gv$log a,gv$logfile b where a.GROUP#=b.GROUP# group by a.group#,a.thread#,a.BYTES/1024/1024,b.MEMBER,a.sequence#,a.members,a.archived,a.status,a.first_time,a.next_time order by group#

150.             """

151.         res = self.ExecSql(sqlStr)

152.         return res

154.     def PrintRedo(self,res):

155.         print("%s" % "".center(148, "-"))

156.         print("|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%("GROUP".center(5),"SIZE_MB".center(7),"MEMBER".center(50),"THREAD".center(6),"SEQUENCE".center(8),"MEMBERS".center(7),"ARCHIVED".center(8),"STATUS".center(8),"FIRST_TIME".center(19),"NEXT_TIME".center(19)))

157.         print("%s" % "".center(148, "-"))

158.         for t in res:

159.             if t[9] == None:

160.                 tStr = "|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%(str(t[0]).center(5),str(t[1]).center(7),t[2].center(50),str(t[3]).center(6),str(t[4]).center(8),str(t[5]).center(7),t[6].center(8),t[7].center(8),datetime.datetime.strftime(t[8],"%Y-%m-%d %H:%M:%S"),"None".center(19))

161.             else:

162.                 tStr = "|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|" % (

163.                 str(t[0]).center(5), str(t[1]).center(7), t[2].center(50), str(t[3]).center(6), str(t[4]).center(8),

164.                 str(t[5]).center(7), t[6].center(8), t[7].center(8),

165.                 datetime.datetime.strftime(t[8], "%Y-%m-%d %H:%M:%S"),

166.                 datetime.datetime.strftime(t[9], "%Y-%m-%d %H:%M:%S"))

167.             print(tStr)

168.         print("%s" % "".center(148, "-"))

170.     def GetRedoShift(self):

171.         sqlStr = """

172.                   SELECT

173.                   to_char(first_time,'YYYY-MM-DD') day,

174.                   to_char(sum(decode(to_char(first_time,'HH24'),'00',1,0)),'999') "00",

175.                   to_char(sum(decode(to_char(first_time,'HH24'),'01',1,0)),'999') "01",

176.                   to_char(sum(decode(to_char(first_time,'HH24'),'02',1,0)),'999') "02",

177.                   to_char(sum(decode(to_char(first_time,'HH24'),'03',1,0)),'999') "03",

178.                   to_char(sum(decode(to_char(first_time,'HH24'),'04',1,0)),'999') "04",

179.                   to_char(sum(decode(to_char(first_time,'HH24'),'05',1,0)),'999') "05",

180.                   to_char(sum(decode(to_char(first_time,'HH24'),'06',1,0)),'999') "06",

181.                   to_char(sum(decode(to_char(first_time,'HH24'),'07',1,0)),'999') "07",

182.                   to_char(sum(decode(to_char(first_time,'HH24'),'08',1,0)),'999') "08",

183.                   to_char(sum(decode(to_char(first_time,'HH24'),'09',1,0)),'999') "09",

184.                   to_char(sum(decode(to_char(first_time,'HH24'),'10',1,0)),'999') "10",

185.                   to_char(sum(decode(to_char(first_time,'HH24'),'11',1,0)),'999') "11",

186.                   to_char(sum(decode(to_char(first_time,'HH24'),'12',1,0)),'999') "12",

187.                   to_char(sum(decode(to_char(first_time,'HH24'),'13',1,0)),'999') "13",

188.                   to_char(sum(decode(to_char(first_time,'HH24'),'14',1,0)),'999') "14",

189.                   to_char(sum(decode(to_char(first_time,'HH24'),'15',1,0)),'999') "15",

190.                   to_char(sum(decode(to_char(first_time,'HH24'),'16',1,0)),'999') "16",

191.                   to_char(sum(decode(to_char(first_time,'HH24'),'17',1,0)),'999') "17",

192.                   to_char(sum(decode(to_char(first_time,'HH24'),'18',1,0)),'999') "18",

193.                   to_char(sum(decode(to_char(first_time,'HH24'),'19',1,0)),'999') "19",

194.                   to_char(sum(decode(to_char(first_time,'HH24'),'20',1,0)),'999') "20",

195.                   to_char(sum(decode(to_char(first_time,'HH24'),'21',1,0)),'999') "21",

196.                   to_char(sum(decode(to_char(first_time,'HH24'),'22',1,0)),'999') "22",

197.                   to_char(sum(decode(to_char(first_time,'HH24'),'23',1,0)),'999') "23"

198.                   from

199.                   v$log_history

200.                   GROUP by

201.                   to_char(first_time,'YYYY-MM-DD') order by day desc

202.                  """

203.         res = self.ExecSql(sqlStr)

204.         return res

206.     def PrintRedoShift(self,res):

207.         print("%s" % "".center(132, "-"))

208.         print("|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%("DAY".center(10),"00".center(4),"01".center(4),"02".center(4),"03".center(4),"04".center(4),"05".center(4),"06".center(4),"07".center(4),"08".center(4),"09".center(4),"10".center(4),"11".center(4),"12".center(4),"13".center(4),"14".center(4),"15".center(4),"16".center(4),"17".center(4),"18".center(4),"19".center(4),"20".center(4),"21".center(4),"22".center(4),"23".center(4)))

209.         print("%s" % "".center(132, "-"))

210.         for t in res:

211.             print("|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%(t[0].center(10),t[1].center(4),t[2].center(4),t[3].center(4),t[4].center(4),t[5].center(4),t[6].center(4),t[7].center(4),t[8].center(4),t[9].center(4),t[10].center(4),t[11].center(4),t[12].center(4),t[12].center(4),t[13].center(4),t[14].center(4),t[15].center(4),t[16].center(4),t[17].center(4),t[18].center(4),t[19].center(4),t[20].center(4),t[21].center(4),t[22].center(4),t[23].center(4)))

212.         print("%s" % "".center(132, "-"))

215.     def GetExecNow(self):

216.         sqlStr = """

217.                 select distinct b.SID,b.SERIAL#,p.SPID,b.LAST_CALL_ET,a.sql_id, a.sql_text,b.status,b.event,b.MODULE, b.OSUSER,b.MACHINE from v$sql a,v$session b,v$process p where a.SQL_ID=b.SQL_ID and b.PADDR=p.ADDR and b.STATUS='ACTIVE' order by B.LAST_CALL_ET desc

218.                 """

219.         res = self.ExecSql(sqlStr)

220.         return res

222.     def PrintExecNow(self,res):

223.         print("%s" % "".center(188, "-"))

224.         print("|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%("SID".center(6),"SERIAL".center(6),"SPID".center(5),"LAST_ET".center(7),"SQL_ID".center(15),"SQL_TEXT".center(60),"STATUS".center(7),"EVENT".center(30),"MODULE".center(15),"OSUSER".center(10),"MACHINE".center(15)))

225.         print("%s" % "".center(188, "-"))

226.         for t in res:

227.             print("|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|"%(str(t[0]).center(6),str(t[1]).center(6),t[2].center(5),str(t[3]).center(7),t[4].center(15),t[5].strip()[0:60].center(60),t[6].center(7),t[7][0:30].center(30),t[8][0:15].center(15),t[9].center(10),t[10][0:15].center(15)))

228.         print("%s" % "".center(188, "-"))

231.     def GetIndexInfo(self):

232.         if self.Info["OraTable"] == None:

233.             print("You must specify a oracle table to get indexs information of table.")

234.             print("If you don't know how to specify the parameters.You can -h to get help")

235.             exit(6)

236.         sqlStr = """

237.                 select

238.                     table_name,

239.                     TABLE_TYPE,

240.                     INDEX_NAME,

241.                     INDEX_TYPE,

242.                     TABLE_OWNER,

243.                     max(columns) columns

244.                 from

245.                 (SELECT

246.                     ui.table_name,

247.                     ui.TABLE_TYPE,

248.                     ui.INDEX_NAME,

249.                     ui.INDEX_TYPE,

250.                     uic.TABLE_OWNER,

251.                     to_char(wm_concat (uic.COLUMN_NAME)

252.                         over(partition by ui.table_name,ui.TABLE_TYPE,ui.INDEX_NAME,ui.INDEX_TYPE,uic.TABLE_OWNER order by uic.COLUMN_POSITION)) columns

253.                 FROM

254.                     dba_indexes ui,

255.                     dba_IND_COLUMNS uic

256.                 WHERE

257.                     ui.INDEX_NAME (+) = uic.INDEX_NAME

258.                 AND ui.TABLE_NAME = UPPER ('%s'))

259.                 GROUP BY

260.                     table_name,

261.                     TABLE_TYPE,

262.                     INDEX_NAME,

263.                     INDEX_TYPE,

264.                     TABLE_OWNER

265.                 """%self.Info["OraTable"]

266.         res = self.ExecSql(sqlStr)

267.         return res

270.     def PrintIndexInfo(self,res):

271.         print("%s" % "".center(142, "-"))

272.         print("|%s|%s|%s|%s|%s|%s|"%("TABLE_NAME".center(20),"TABLE_TYPE".center(20),"INDEX_NAME".center(25),"INDEX_TYPE".center(15),"TABLE_OWNER".center(15),"COLUMNS".center(40)))

273.         print("%s" % "".center(142, "-"))

274.         for t in res:

275.             print("|%s|%s|%s|%s|%s|%s|" % (t[0].center(20), t[1].center(20), t[2].center(25), t[3].center(15), t[4].center(15), t[5].center(40)))

277.         print("%s" % "".center(142, "-"))

280.     def GetPartInfo(self):

281.         if self.Info["OraTable"] == None:

282.             print("You must specify a oracle table to get indexs information of table.")

283.             print("If you don't know how to specify the parameters.You can -h to get help")

284.             exit(6)

285.         sqlStr = """

286.                 SELECT

287.                     a.TABLE_OWNER,

288.                     a.table_name,

289.                     c. M,

290.                     a.PARTITION_NAME,

291.                     a.HIGH_VALUE,

292.                     a.NUM_ROWS,

293.                     a.TABLESPACE_NAME,

294.                     b.COLUMN_NAME,

295.                     A .LAST_ANALYZED

296.                 FROM

297.                     dba_TAB_PARTITIONS A,

298.                     DBA_PART_KEY_COLUMNS b,

299.                     (

300.                         SELECT

301.                             SUM (bytes / 1024 / 1024) M,

302.                             segment_name,

303.                             partition_name

304.                         FROM

305.                             dba_segments

306.                         WHERE segment_type LIKE '%%TABLE%%'

307.                         AND partition_name IS NOT NULL

308.                         and segment_name = upper('%s')

309.                         GROUP BY

310.                             segment_name,

311.                             partition_name

312.                         ORDER BY

313.                             segment_name,

314.                             partition_name DESC

315.                     ) c

316.                 WHERE

317.                     A .TABLE_NAME = b. NAME (+)

318.                 AND A .table_name = c.SEGMENT_NAME

319.                 AND A .partition_name = c.PARTITION_NAME

320.                 AND A .table_name = upper('%s')

321.                 ORDER BY

322.                     A .TABLE_NAME,

323.                     partition_name DESC

324.                 """%(self.Info["OraTable"],self.Info["OraTable"])

325.         res = self.ExecSql(sqlStr)

326.         return res

328.     def PrintPartInfo(self,res):

329.         print("%s" % "".center(184, "-"))

330.         print("|%s|" % "TABLE_OWNER".center(15), end='')

331.         print("%s|" % "TABLE_NAME".center(25), end='')

332.         print("%s|" % "MB".center(5), end='')

333.         print("%s|" % "PARTITION_NAME".center(20), end='')

334.         print("%s|" % "HIGH_VALUE".center(40), end='')

335.         print("%s|" % "NUM_ROWS".center(10), end='')

336.         print("%s|" % "TABLESPACE".center(20), end='')

337.         print("%s|" % "CULUMN_NAME".center(20), end='')

338.         print("%s|" % "LAST_ANALYZED".center(19))

339.         print("%s" % "".center(184, "-"))

341.         for t in res:

342.             print("|%s|"%t[0].center(15),end='')

343.             print("%s|"%t[1].center(25), end='')

344.             print("%s|"%str(t[2]).center(5), end='')

345.             print("%s|"%t[3].center(20), end='')

346.             print("%s|"%t[4][0:40].center(40), end='')

347.             print("%s|"%str(t[5]).center(10), end='')

348.             print("%s|"%t[6].center(20), end='')

349.             if t[7] == None:

350.                 print("%s|"%"None".center(20))

351.             else:

352.                 print("%s|"%t[7].center(20), end='')

353.             print("%s|"%(datetime.datetime.strftime(t[8],"%Y-%m-%d %H:%M:%S")))

354.         print("%s" % "".center(184, "-"))

356.     def OraInfo(self): #这个函数不格式化打印返回结果，只返回结果集

357.         self.Check_Info()

358.         if self.Info["OraInfo"].upper() == "TABLESPACE":

359.             self.GetTableSpace()

360.         elif self.Info["OraInfo"].upper() == "ASMDISKGROUP":

361.             self.GetAsmDiskGroup()

362.         elif self.Info["OraInfo"].upper() == "REDO":

363.             self.GetRedo()

364.         elif self.Info["OraInfo"].upper() == "REDOSHIFT":

365.             self.GetRedoShift()

366.         elif self.Info["OraInfo"].upper() == "EXECNOW":

367.             self.GetExecNow()

368.         elif self.Info["OraInfo"].upper() == "INDEXINFO":

369.             self.GetIndexInfo()

370.         elif self.Info["OraInfo"].upper() == "PARTITIONINFO":

371.             self.GetPartInfo()

372.         else:

373.             print("Please enter valid value for -i")

374.             exit(6)

377.     def PrintOraInfo(self):

378.         self.Check_Info()

379.         if self.Info["OraInfo"].upper() == "TABLESPACE":

380.             self.PrintTablespace(self.GetTableSpace())

381.         elif self.Info["OraInfo"].upper() == "ASMDISKGROUP":

382.             self.PrintAsmDiskGroup(self.GetAsmDiskGroup())

383.         elif self.Info["OraInfo"].upper() == "REDO":

384.             self.PrintRedo(self.GetRedo())

385.         elif self.Info["OraInfo"].upper() == "REDOSHIFT":

386.             self.PrintRedoShift(self.GetRedoShift())

387.         elif self.Info["OraInfo"].upper() == "EXECNOW":

388.             self.PrintExecNow(self.GetExecNow())

389.         elif self.Info["OraInfo"].upper() == "INDEXINFO":

390.             self.PrintIndexInfo(self.GetIndexInfo())

391.         elif self.Info["OraInfo"].upper() == "PARTITIONINFO":

392.             self.PrintPartInfo(self.GetPartInfo())

393.         else:

394.             print("Please enter valid value for -i")

395.             exit(6)

397. def fun_help():

398.     helpStr = """

399.     Name

400.         CheckOracle.py      display information which you want to know

401.     

402.     Synopsis

403.         CheckOracle.py -H [romote_host] -u [oracle user] -p [oracle password] -s [oracle SID] -i [information] [table_name]

404.     

405.     Description

406.         -H Specify a remote host,defaul 127.0.0.1.

407.         -u Specify a oracle user

408.         -p Specify a oracle password

409.         -s Specify a oracle SID

410.         -i Specify a action information what you want to know

411.             Value:

412.                 tablespace

413.                 asmdiskgroup

414.                 redo

415.                 redoshift

416.                 execnow

417.                 indexinfo

418.                     Table_name must be specified after indexinfo.

419.                 partitioninfo

420.                     Table_name must be specified after partitioninfo.

421.     

422.     Example

423.         python3 CheckOracle.py -H 127.0.0.1 -u system -p BIIpass01 -s masdb3 -i execnow

424.         python3 CheckOracle.py -H 127.0.0.1 -u system -p BIIpass01 -s masdb3 -i indexinfo dept

425.         python3 CheckOracle.py -H 127.0.0.1 -u system -p BIIpass01 -s masdb3 -i partitioninfo dept

426.     """

427.     print(helpStr)

429. if __name__=="__main__":

430.     # print(sys.argv)

431.     # print(len(sys.argv))

433.     if len(sys.argv) > 1: #判断是否传递了参数

434.         for i in range(1,len(sys.argv)): #循环参数下标

435.             # print(sys.argv[i])

436.             if sys.argv[i] == "-H": #判断参数

437.                 if re.match("^-",sys.argv[i+1]) == None: #判断当先的下一个参数是否为-开头，-开头不是正取的value值

438.                     i += 1   #下标加1

439.                     OracleConn.Info["host"] = sys.argv[i] #获取参数值

440.                 else:

441.                     print("-H.You use this parameter,but no value are specified") #当前参数的下一个参数，不是正取的value值，报错退出

442.                     exit(2)

443.             elif sys.argv[i] == "-u":

444.                 if re.match("^-", sys.argv[i+1]) == None:

445.                     i += 1

446.                     OracleConn.Info["OraUser"] = sys.argv[i]

447.                 else:

448.                     print("-u.You use this parameter,but no value are specified")

449.                     exit(2)

450.             elif sys.argv[i] == "-p":

451.                 if re.match("^-", sys.argv[i+1]) == None:

452.                     i += 1

453.                     OracleConn.Info["OraPasswd"] = sys.argv[i]

454.                 else:

455. 
     分享标题：python中怎么利用cx_Oracle连接oracle数据库
     文章起源：http://www.cqwzjz.cn/article/gceoco.html