Could someone guide me how to install the Perl DBD::Oracle module? Here is what I have done so far: Platform: RHEL 5.8 64 bit Installed Perl DBI package Installed. Enabling ODBC support in Perl with Perl DBI and DBD: :ODBCEnabling ODBC support in Perl with Perl DBI and DBD: :ODBCThis document describes how to build Perl DBI, add the DBD: :ODBC module and use an ODBC driver provided by Easysoft in your Perl scripts. Contents. 1. 0 Introduction. Easysoft ODBC drivers have been proven with Perl DBI- 1. DBI- 1. 5. 0 and DBD- ODBC 0.
If you are working on Open. VMS please see separate Open. VMS notes later in this file. How does ODBC work in Perl. To use an ODBC driver in Perl you generally use the following components: DBI module - the DBI is a database interface module for Perla database driver such as DBD: :ODBC which is a perl module the DBI loads. DBD: :ODBC is the ODBC Driver for DBI. ODBC driver manager such as unix. ODBC which comes with all Easysoft's UNIX ODBC drivers. You can also use i. ODBC but Easysoft recommend unix. ODBC. an ODBC driver. Easysoft provide a number of UNIX and Windows ODBC drivers at easysoft. To use ODBC in Perl you write a perl script which contains use DBI; and call the DBI- > connect method with a data_source. DBI's data sources are in the form "dbi: DRIVER" where DRIVER; is the DBI driver which is to be used so for DBD: :ODBC you use "dbi: ODBC" and DBI will load the DBD: :ODBC module for you. You build DBD: :ODBC with a dependency on an ODBC driver manager such as unix. ODBC, so when DBI loads the DBD: :ODBC Perl module your ODBC driver manager will be loaded too. ODBC needs an ODBC data source to work with so your DBI- > connect call becomes 'dbi: ODBC: ODBC_DSN' where ODBC_DSN is an ODBC data source generally defined in an odbc. At this point, the ODBC driver manager will see a SQLDriver. Connect or SQLConnect (ODBC APIs) call containing the ODBC data source, it will locate that DSN, lookup the ODBC driver supporting that DSN and load the ODBC driver. The ODBC driver will connect to your database engine then you can use DBI methods. What you need to do before attempting to use an ODBC driver in Perl. Make sure you have tested your Perl installation. If you built Perl yourself run the Perl tests. Make sure you have the minimum requirements of Perl DBI - see the README file that comes with DBI. For DBI 1. 4. 3 you need a minimum of Perl 5. You can download the DBI module fromhttp: //www. DBIorhttp: //search. DBIRead the README that comes with DBI. Make sure have the minimum requirement of Perl DBD: :ODBC - see the README file that comes with DBD: :ODBC. For DBD: :ODBC 1. DBI 1. 2. 01. You can download the DBD: :ODBC module fromhttp: //www. DBDorhttp: //search. DBD: :ODBCRead the README that comes with DBD: :ODBC. Now verify that your ODBC driver is installed and working: All Easysoft ODBC drivers for UNIX come with the unix. ODBC driver manager and we strongly recommend you use the unix. ODBC driver manager with Perl. Locate the unix. ODBC driver manager: If you installed unix. ODBC as part of your Easysoft installation it will be in /usr/local/easysoft/unix. ODBC. unix. ODBC programs will be in /usr/local/easysoft/unix. ODBC/bin. If you built unix. ODBC yourself it will be in /usr/local (by default) or wherever you set - -prefix to. ODBC programs will be in /usr/local/bin or prefix/bin. ODBC as part of a RPM or package it will be in various places but the unix. ODBC programs should already be on your path (probably /usr/bin). You will know if you have the correct path if you can find unix. ODBC's odbcinst program. In the rest of this section the path to unix. ODBC programs is called UNIXODBCBIN. Locate where unix. ODBC is storing the installed ODBC drivers and SYSTEM DSNs: UNIXODBCBIN/odbcinst - j. DRIVERS......: /etc/odbcinst. SYSTEM DATA SOURCES: /etc/odbc. USER DATA SOURCES.: /home/person/. In this case /etc/odbcinst. ODBC stores a list of the installed ODBC drivers and /etc/odbc. SYSTEM DSNs. The odbcinst. Easysoft ODBC driver you have installed. OOB it will look similar to this: [OOB]. Description = Easysoft ODBC- ODBC Bridge. Driver = /usr/local/easysoft/oob/client/libesoobclient. Setup = /usr/local/easysoft/oob/client/libesoobsetup. File. Usage = 1. If you haven't got an ODBC driver in odbcinst. Easysoft product installation found or installed unix. ODBC. The odbc. ini file is where you define your ODBC data sources. There are SYSTEM and USER DSNs. SYSTEM DSNs are stored in the file pointed to by "SYSTEM DATA SOURCES" output by odbcinst above and USER DSNs are in the file pointed to "USER DATA SOURCES". The driver manager always looks for USER DSNs before SYSTEM ones and if you want the DSN to be accessible to everyone on the machine you should make it a SYSTEM DSN. Create/check and test your DSNs with isql. When you install an Easysoft ODBC driver the installation will usually create a DSN in the SYSTEM odbc. Exceptions to this are if unix. ODBC was not installed as part of the Easysoft installation or if unix. ODBC was not already found on your machine. Check your SYSTEM odbc. DSN to test. If your SYSTEM odbc. DSN you will need to create one - see instructions that come with the Easysoft ODBC driver you are using usually found in /usr/local/easysoft/DRIVER/docs. If the DSN you are using requires a username and password to login to the database you need to have these to hand. Run: UNIXODBCBIN/isql - v DSNdatabase_usernamedatabase_passwordwhere DSN is the name of your DSN and database_username and database_password are the login information for your database. This should successfully connect to your database and provide a prompt at which you can type in SQL. If it doesn't then there are a number of possibilities and you should: Check you've set any necessary environment variables like ORACLE_HOME, LD_LIBRARY_PATH etc (see the manual for the Easysoft ODBC driver you are using). ODBC driver. contact Easysoft support if you have a support contract or are trialling. A few common problems are listed in Appendix B: Common problems accessing your DSNIn order to test DBD: :ODBC you need access to an ODBC DSN that points to a database in which you can create and delete tables and procedures. You should make sure you have created and tested this DSN as you will need it later. Until this works there is no point in continuing with these instructions. DBD: :ODBC is just like isql, it is another application using ODBC, so if isql does not work, DBD: :ODBC won't either. Building Perl DBI, DBD: ODBC with ODBC (not Open. VMS)NOTE: Please check the later sections in this document for specific notes about older versions of DBD: :ODBC. NOTE: Although you can still build DBD: :ODBC directly against the Easysoft ODBC- ODBC Bridge client ODBC driver, Easysoft strongly recommend you don't. Instead, select to install the unix. ODBC driver manager included with Easysoft ODBC driver distributions and build DBD: :ODBC against that. Unpack DBI and build/test as per the instructions in the README file in the Perl DBI distribution. Install DBI. Unpack DBD- ODBC. To test DBD: :ODBC you need access to an ODBC DSN that points to a database in which you can create and delete tables and procedures. See 3. 0 What you need to do before attempting to use an ODBC driver in Perl. NOTE: Do not use the [demo] data source created by the OOB installation as this is a read- only database and the make test for DBD: :ODBC needs write access. Read the README accompanying the DBD: ODBC distribution. You must define and export the following environment variables: DBI_DSN The dbi data source, e. ODBC: YOUR_DSN_HERE'DBI_USER The username to use to connect to the database. DBI_PASS The username to use to connect to the database. ODBCHOME The directory the unix. ODBC driver manager was installed in (e. ODBC). If you are using the Easysoft ODBC- ODBC Bridge you can set ODBCHOME to or the /usr/local/easysoft/oob/client and build DBD: :ODBC without a driver manager and directly with the OOB client ODBC driver but Easysoft recommend you use the unix. ODBC driver manager.
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