Oracle表结构转换SqlSERVER表结构 脚本

Posted 2020-06-12

在审计工作中,有时需要将Oracle的表结构修改后再SqlSERVER中创建表结构,然后将数据导入到SqlSERVER中,在修改表结构的过程中方法狠多.手工修改,最蠢的方法,或者用工具UE批量修改,还凑合的方法,最方便的方法就是用脚本唰的一下,全部改好 ：

vi     parameter.ini
#sysType---1:Linux;others:windows
sysType=1
#readFiledir is OldFile
readFiledir=/root/tmpmycnf/dbquery/yoon/oldfile
#writeFiledir is New File
writeFiledir=/root/tmpmycnf/dbquery/yoon/newfile



vi    sql.py

#! /usr/bin/python
# -*- coding: utf-8 -*-
#Author:Yoon
#Version:1.0
#Date:2014-07-07

import os
import sys
 
class Application(object):
    def __init__(self):
        self._oldFileDir = ‘‘
        self._newFileDir = ‘‘
        self._inifilename = ‘./parameter.ini‘
        self._start = ‘false‘

    def readInitFile(self,keyName):
        data = open(self._inifilename,‘r‘) 
        for line in data:
            if keyName == line.split(‘=‘)[0].strip():
                return line.split(‘=‘)[1].strip()
                break
        data.close()

    def getNewLine(self,oldLine):
        if oldLine.strip().startswith(‘create table‘):
            tablename = oldLine.strip().split(‘.‘)[1].strip()
            newline = ‘create table ‘ + tablename + oldLine[-1]
        else:
            if oldLine.strip().startswith(‘(‘):
                newline = oldLine
            elif oldLine.startswith(‘)‘):
                newline = ‘null‘ + oldLine[-1] + oldLine + oldLine[-1]
                self._start = ‘false‘
            else:
               strList = oldLine.split(‘ ‘)
               newline = ‘‘
               for string in strList:
                   if string == ‘‘:
                       newline += ‘ ‘
                   elif string.strip().upper().startswith(‘DEFAULT‘):
                       continue
                   elif (string.upper() == ‘NOT‘) or (string.upper() == ‘NULL‘):
                       continue
                   elif string.upper().startswith(‘VARCHAR2‘):
                       newline += ‘varchar(‘ + str(int(string[string.find(‘(‘)+1:string.find(‘)‘)])*3) + ‘) ‘
                   elif (string.upper() == ‘NUMBER‘) or (string.upper() == ‘DATE‘) or (string.upper() == ‘DATETIME‘) or (string.upper() == ‘TIMESTAMP(6)‘) or (string.upper() == ‘INTEGER‘):
                       newline += ‘varchar(100) ‘
                   elif ((string.upper().startswith(‘NUMBER‘)) or (string.upper().startswith(‘DATE‘)) or (string.upper().startswith(‘DATETIME‘)) or (string.upper().startswith(‘TIMESTAMP(6)‘)) or (string.upper().startswith(‘INTEGER‘))) and (string[-1] == ‘\n‘):
                       newline += ‘varchar(100) ‘
                   elif (string.upper().startswith(‘NUMBER,‘)) or (string.upper().startswith(‘DATE,‘)) or (string.upper().startswith(‘DATETIME,‘)) or (string.upper().startswith(‘TIMESTAMP(6),‘)) or ((string.upper().startswith(‘NUMBER(‘)) and (‘,‘ in string)) or ((string.upper().startswith(‘NUMBER(‘)) and (‘,‘ in string)) or (string.upper().startswith(‘INTEGER,‘)):
                       newline += ‘varchar(100) null‘
                   elif string.upper().startswith(‘NUMBER(‘):
                      newline += ‘varchar(100)‘
                   else:
                       i = 0
                       while (1 == 1):
                          if strList[i] == ‘‘:
                             i += 1
                          else:
                             filedName=strList[i]
                             break
                       if string == filedName:
                          newline = string + newline   
                   if ‘,‘ in string:
                       newline += ‘ null‘+string[string.rfind(‘,‘):]
        return newline
    
    def createNewFileFromOldFileList(self):
        readFileDir  = self.readInitFile(‘readFiledir‘)
        writeFileDir = self.readInitFile(‘writeFiledir‘)
        sysType      = self.readInitFile(‘sysType‘)
        if sysType == ‘1‘:
            sepStr = ‘/‘
        else:
            sepStr = ‘\\‘
        listfile=os.listdir(readFileDir)
        for file in listfile:
            start = ‘false‘
            writeFile = open(writeFileDir+sepStr+file, ‘w‘)
            readData = open(readFileDir+sepStr+file,‘r‘)
            for line in readData:
                if line.lower().startswith(‘create table‘):
                    self._start = ‘true‘
                if self._start==‘true‘:
                    newLine = self.getNewLine(line)
                    writeFile.write(newLine)
            readData.close()
            writeFile.close()
            
app = Application()
app.createNewFileFromOldFileList()

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[[email protected] ~]# /usr/bin/python  sql.py