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Home Page: http://metacpan.org/release/Dblink
Read-only release history for Dblink
Home Page: http://metacpan.org/release/Dblink
Dblink version 1.0 ================== Perl module to create dblink views to return results from a remote database. Before using this module, please ensure to install dblink 0.5 contrib module in the destination postgresql database. If it is not installed, the creation of the remote view would fail. This module is available along with the source code of postgresql. If you have not yet downloaded the source code of postgresql, you can visit the below link to know the postgresql mirror website. Locate one of the nearest mirror and download postgresql. www.postgresql.org/mirrors-ftp.html AUTHOR A.Bhuvaneswaran <[email protected]> RELEASE NOTES Version 1.0 - User defined configuration file (default: ~/.pgpass) - Enable/Disable application debug (debug & stdin) - Auto detection of data type of the fields of source table Version 0.2 - initial release INSTALLATION To install this module type the following: perl Makefile.PL make make test make install DEPENDENCIES This module requires these other modules and libraries: - Postgresql 7.3 or above - dblink 0.5 or above - DBI 1.21 or above - DBD::Pg 1.01 or above - Data::Dumper 2.102 or above DESCRIPTION Dblink is a perl wrapper for postgresql dblink contrib module. Using this module, you are able to create dblink views in a database. A dblink view can query another database and return the results. It makes an implicit connection to the remote database. Refer the document on dblink contrib which is shipped with the source of postgresql for details. create_remote_view(sdbh, ddbh, prepend, table); sdbh - source database handle (returned by DBI->connect) ddbh - dest. database handle (returned by DBI->connect) prepend - text to be prepended to the view (default: dbl_) table - table for which the view is to be created If the table is foo, then the name of the view is dbl_foo. TESTING Refer './dblink_test -h' for details. The syntax of the configuration should be: host:port:dbname:username:password For example, if the source database details are in line 1 and dest. database details are in line 4 and if you wish to create remote view for table foobar, then run the script as, $ ./dblink_test -s 1 -d 4 -t foobar Once the dblink view is successfully created, connect to that database using psql. Establish a dblink connection via dblink_connect() function. Do select records from the dblink view. Disconnect the dblink connection via dblink_disconnect() function. NOTE: Currently, pg7.3 or above is supported. If you want to use this module for earlier versions, please contact me. It is available. If this information is not enough or if you face any problem during the installation, please feel free to the contact me. COPYRIGHT AND LICENCE GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all.
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