Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #82886

Ora2pg Download For Windows 10

Show all headers | View raw

i downloaded the zip file which was available online for free download but i a not able to install the downloaded file and run the file, can any one please help me installing the ora2pg on my windows machine please.


How? To save time, I did some research in postgreSQL blogs and found a tool ora2pg tool. This tool works best on UNIX as described in the blog. But there are quite good challenges when your PostgreSQL is on windows system.



ora2pg download for windows 10

Download File https://t.co/cRUPNbNsPB 






as my windows machine is behind a firewall and networking is not allowing this to open to it up to the internet. Is there a way to manually download and install DBD::Oracle. Any help is appreciated.


For those in the Windows world, you get some articles/videos on setting up Ora2pg, including Steps to Install ora2pg on Windows and Linux.pdf from Data SQL Ninja Engineering Team of Microsoft. And, none of them seemed to work. Malarkannan and I needed to set Ora2pg quickly.


Open the file C:\ora2pg\ora2pg.conf. Since we plan to use a DDL file as input, there's no need for Oracle or other details inside. Remove everything there. Just type this one line. Yes, just one-line.


You should now have an ora2pg_dist.conf file in your ora2pg installation folder. Use it as a template to connect to different oracle databases by creating a *.conf file for each by copying the file under a new name, e.g. ora2pg_oradb_name.conf. You should at least change the following values in this file:


The executable (ora2pg.bat) file is located under C:\ora2pg\ora2pg-21.0\blib\script. So to run a conversion, first create a folder to store the converted scripts and then open a command prompt, navigate to C:\ora2pg\ora2pg-21.0\blib\script and run:


New command line option --lo_import. By default Ora2Pg imports Oracle BLOB as bytea, the destination column is created using the bytea data type. If you want to use large object instead of bytea, just add the --blob_to_lo option to the ora2pg command. It will create the destination column with data type Oid and will save the BLOB as a large object using the lo_from_bytea() function. The Oid returned by the call to lo_from_bytea() is inserted in the destination column instead of a bytea. This option can only be used with actions SHOW_COLUMN, TABLE and INSERT, action COPY is not supported. If you want to use COPY or have huge size BLOB ( > 1GB ) than can not be imported using lo_from_bytea() you can add option --lo_import to the ora2pg command. This will allow to import data in two passes:






2) Execute all scripts lo_import-TABLENAME.sh after setting the environment variables PGDATABASE and optionally PGHOST, PGPORT, PGUSER, etc. if they do not correspond to the default values for libpq. You might also execute manually a VACUUM FULL on the table to remove the bloat created by the table update.



 Limitation: the table must have a primary key, it is used to set the WHERE clause to update the Oid column after the large object import. Importing BLOB using this second method (--lo_import) is very slow so it should be reserved to rows where the BLOB > 1GB for all other rows use the option --blob_to_lo. To filter the rows you can use the WHERE configuration directive in ora2pg.conf.


An important part of performing a migration from Oracle to PostgreSQL isselecting the right tool for helping with the conversion between systems. Whenpeople ask me how they can get the migration process started, I like torecommend a powerful open source utility called"ora2pg".


For this demo on how to install ora2pg, we are using a Centos 7.7 Environmentwith Oracle 12.1 installed. We will also be using ora2pg 20.0. ora2pg can eitherbe run on the PostgreSQL server or you can run it on the Oracle server. ora2pgwas run on my Oracle server. In this demo I used a virtual box to create myenvironment, I will assume that you have your Oracle environment already setup.


If you don't want to install ora2pg on the Oracle server and instead on thePostgreSQL server there are a couple of extra steps that need to be done. Firstyou will need to have PostgreSQL installed. If you need help installingPostgreSQL please look at thepreviously published blog post.


Before getting started there were some prerequisites my environment needed inorder to build DBD::Oracle and ora2pg. I needed to install a couple of perlmodules in order to get everything up and running. I did so by running:


Before we build/install ora2pg you need to build/install the Perl moduleDBD::Oracle. DBD::Oracle is a Perl module that works with the DBI module toprovide access to Oracle databases. If you would like to learn more about itplease click the following link ::Oracle.


After you have installed DBD::Oracle, you will then need to build/installora2pg. The steps below are similar to the steps in the documentation of ora2pgwhich you can find in this link The onlydifference is the first step, where you need to wget the tar file from ora2pgGithub archive.


After you have ora2pg built and installed you can now configure theora2pg.conf to work with your Oracle server. The settings that you see beloware the settings in my environment. The ora2pg.conf file has manyconfiguration settings that you can change. Below are the configuration changesthat you will need to apply to your ora2pg.conf in order to be able to useora2pg. Please keep in mind that you will need to change the settings to matchyour environment. If you would like to learn more about the other configurationsplease look at the documentation:


In the previous example ora2pg uses the default configuration file /etc/ora2pg/ora2pg.conf.

Also notice that ora2pg only exports DDL for the schema SCOTT as we defined this schema within the configuration file.


In this article, we will discuss the process of copying an Oracle database from Oracle to PostgreSQL. The tools we will be using for this are Oracle XE, PostgreSQL, SymmetricDS (replication software), and ora2pg. PostgreSQL, SymmetricDS, and ora2pg are all open source software.


PostgreSQL is the destination database software, SymmetricDS is the replication software, and ora2pg is a tool for converting the Oracle table definitions to PostgreSQL, and also for creating the initial load if required.


After installing Swingbench and Java, run the oewizard (oewizard.bat on windows) to create the order entry (OE) schema in your Oracle database. For the purposes of this demo, choose the smallest database size, 3.2G. Here is a link to instructions for installation of Swingbench: -installation-and-setup/.


The next step is to copy the schema from Oracle to PostgreSQL. It works best to pre-create the tables, as SymmetricDS may not convert the data types properly if it is allowed to create the tables. The program ora2pg, downloaded here: , can be used to generate the DDL for the tables in PostgreSQL. For the purposes of this blog, we are not going to try and convert the PL/SQL triggers, functions, and packages.


Ora2pg uses ora2pg.conf file for its configuration arguments. One of the lines has the data type conversions, and the interval data type was left off this list. So, uncomment this line and add this to the front of the data line: INTERVAL:interval, so the line should read like this:


After configuring the ora2pg.conf file, set your environment for the Oracle database you will be accessing by using oraenv. This will set up the appropriate libraries. If you see an error similar to this:


The main technical consideration, and focus, in any migration should be the code. Whether its T-Sql or plsql, conversion to plpgsql is not trivial, and in some cases impossible. Therefore, as this post is an introduction to ora2pg, it will focus on a relatively simple schema migration.


Some googling hinted that the perl script "ora2pg" could be of use, and free of charge. However, now I've spent too much time trying to get that running on my winx64 machine, since MinGw won't compile it and activeperl modules hates me.


You should try to make ora2pg work. It's best tool for this, possibly the only one. Also, if you can't get that to work, you will probably have problems using many other possible tools for PostgreSQL. Try to get help sorting these issues out, and you will be able to use the right tools.


PostgreSQL is one of the most used Rdbms.

In this blog we are going to talk about migrating from oracle to postgresql using ora2pg. A previous blog about this topic can be found here.

After installing ora2pg tool, we will see how to configure and to run it to migrate our data. We are using an oracle 12.1 database and a postgresql 9.6.2. The server is runing on OEL 7.2

The oracle database and the postgresql server are running on the same server. But different servers can be used.


orclpg=# select count(*) from countries;

count

-------

25

(1 row)

orclpg=#



Conclusion

As we can see ora2pg is a free easy tool to migrate data from oracle to postgresql. In coming blog we will talk about other tools that can be used to move data from oracle to postgresql


Hi Mouhamadou,

I have followed the steps for migration from oracle 19c to postgres 13 with ora2pg. but don' t understand why the data is not migrated.the schema hr is created and the tables are created but the data is not inserted.

With Best Reguard.


I want to export the content of the Oracle HR schema into the hr schema in PostgreSQL and set the owner of all objects to the user : gilles. I also want to preserve the case of the Oracle object name. For this purpose, i have set the following configuration in the ora2pg.conf file.


Before starting the data migration, we need to schema to be created in the PostgreSQL database. Ora2Pg can be used to perform the schema migration from Oracle to PostgreSQL. The Oracle schema as extracted using the ORACLE_DSN and the configuration specified in the ora2pg.conf file will be converted to a PostgreSQL specific syntax, with an appropriate data type mapping. In this example, we will just export the tables definition and create the same tables in PostgreSQL. We can create a directory in which the converted PostgreSQL DDL can be stored.

 35fe9a5643

Back to comp.lang.javascript | Previous | Next | Find similar | Unroll thread

Thread

Ora2pg Download For Windows 10 Lourdes Fisherman <lourdesfisherman@gmail.com> - 2023-12-31 05:01 -0800

csiph-web