1、Requirement
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[root@centos1 ~]# perl -v This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux-thread-multi(with 38 registered patches, see perl -V for more detail) [root@centos1 ~]# gcc -vUsing built-in specs.COLLECT_GCC=gccCOLLECT_LTO_WRAPPER=/usr/local/gcc-9.2.0/libexec/gcc/x86_64-pc-linux-gnu/9.2.0/lto-wrapperTarget: x86_64-pc-linux-gnugcc version 9.2.0 (GCC) [root@centos1 ~]# yum install perl-DBI perl-DBD-Pg perl-ExtUtils-MakeMaker perl-Time-HiRes
2、 安装Oracle客户端或者服务端（这里是已经安装了oracle11g服务端）
参考 http://www.cnblogs.com/zydev/p/7213845.html
配置root用户下 Oracle环境变量，因为准备将ora2pg在root下执行
[root@centos1 ~]# echo $ORACLE_HOME /u01/app/oracle/product/11.2.0/dbhome_1 [root@centos1 ~]# echo $LD_LIBRARY_PATH /u01/app/oracle/product/11.2.0/dbhome_1/lib:/lib:/usr/lib [root@centos1 DBD-Oracle-1.80]# echo $ORACLE_BASE /u01/app/oracle
3 、安装DBI，DBD::Oracle
DBI只是个抽象层，要实现支持不同的数据库，则需要在DBI之下，编写针对不同数据库的驱动。对MySQL来说，有DBD::Mysql, 而对ORACLE来说，则是DBD::Oracle。其中的DBD这是DataBase Driver的简写。安装顺序是先装DBI，再装DBD::Oracle
介质下载路径：
DBI:http://www.cpan.org/modules/by-module/DBI/
DBD:http://www.cpan.org/modules/by-module/DBD/
安装DBI
[root@centos1 opt]# tar -zxvf DBI-1.642.tar.gz [root@centos1 opt]# cd DBI-1.642/ [root@centos1 DBI-1.642]# perl Makefile.PL I see you're using perl 5.016003 on x86_64-linux-thread-multi, okay. Remember to actually *read* the README file! Use 'make' to build the software (dmake or nmake on Windows). Then 'make test' to execute self tests. Then 'make install' to install the DBI and then delete this working directory before unpacking and building any DBD::* drivers. Writing Makefile for DBI [root@centos1 DBI-1.642]# make [root@centos1 DBI-1.642]# make install
安装DBD:Oracle
[root@centos1 opt]# tar zxvf DBD-Oracle-1.80.tar.gz [root@centos1 DBD-Oracle-1.80]# perl Makefile.PLChecking if your kit is complete...Looks goodLD_RUN_PATH=/u01/app/oracle/product/11.2.0/dbhome_1/libUsing DBD::Oracle 1.80.Using DBD::Oracle 1.80.Multiple copies of Driver.xst found in: /usr/local/lib64/perl5/auto/DBI/ /usr/lib64/perl5/vendor_perl/auto/DBI/ at Makefile.PL line 1807.Using DBI 1.642 (for perl 5.016003 on x86_64-linux-thread-multi) installed in /usr/local/lib64/perl5/auto/DBI/Writing Makefile for DBD::Oracle [root@centos1 DBD-Oracle-1.80]# make[root@centos1 DBD-Oracle-1.80]# make install
检查安装
[root@centos1 opt]# vi list.pl#!/usr/bin/perl
use strict;use ExtUtils::Installed;my $inst= ExtUtils::Installed->new();my @modules = $inst->modules();foreach(@modules){ my $ver = $inst->version($_) || "???"; printf("%-12s -- %s\n", $_, $ver);}exit;
[root@centos1 opt]# perl list.pl DBD::Oracle -- 1.80DBI -- 1.642Perl -- 5.16.3
4、安装ora2pg
https://github.com/darold/ora2pg/releases
[root@centos1 opt]# tar -zxvf ora2pg-20.0.tar.gz [root@centos1 opt]# cd ora2pg-20.0/ [root@centos1 ora2pg-20.0]# perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for Ora2Pg
Done...
------------------------------------------------------------------------------
Please read documentation at
http://ora2pg.darold.net/ before asking for help
------------------------------------------------------------------------------
Now type: make && make install
[root@centos1 ora2pg-20.0]# make && make install [root@centos1 ora2pg-20.0]# whereis ora2pgora2pg: /etc/ora2pg /usr/local/bin/ora2pg
[root@centos1 opt]# perl list.pl DBD::Oracle -- 1.80 DBI -- 1.642 Ora2Pg -- 20.0 Perl -- 5.16.3
环境变量
[root@centos1 opt]# export PERL5LIB=/usr/local/bin/ [root@centos1 opt]# source /etc/profile
安装完成，接下来测试从oracle到postgres的数据迁移 查看 ora2pg的使用（二、ora2pg的配置及oracle向postgres数据迁移）