Whats the most in-demand programming language UNIX Post: 302963819

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Top Forums Programming Whats the most in-demand programming language UNIX Post 302963819 by durden_tyler on Wednesday 6th of January 2016 08:38:46 PM

01-06-2016

Registered User

By "database management", do you mean "database administration", as in Oracle DBA?

If that's the case, then Oracle DBA guys usually don't do a lot of programming. And Oracle programmers usually don't do a lot of DBA work.
I say "usually" because there is a select breed of niche "developer DBAs" who can do both. In a large corporation, you may not find opportunities to do both. In smaller companies or startups, such opportunities are more.

Oracle is certified a few *nixes - Oracle Enterprise Linux, Solaris etc. but can run on virtually any Linux distro. If you are doing Oracle DBA work on *nix, then you should:
- know the file and directory structure of the *nix installation
- use commands to navigate around, find files, search/replace in files, zip, rename etc.
- do backup, recovery, using Oracle's utilities etc. on *nix.
- be comfortable with basic shell scripting - usually bash or ksh

If you are an Oracle programmer (who writes SQL, PL/SQL etc.) on *nix, then you should be *very* comfortable with shell scripting, sed, awk and/or scripting languages.

That's because once a SQL script is written, deploying and/or scheduling it in a *nix environment requires a little bit of scripting glue work.
As an example, if you want to connect to Oracle and execute your SQL script for a bunch of dates, spool the results to different files, aggregate the results, mail them to interested parties and then tar gzip the files, version them and move them to an archive directory, then you'd need pretty decent shell scripting skills.

Pick up a good book on Unix or Linux and understand the basics, how the filesystem is structured, what the commands are, how to use them etc.
Learn shell scripting - bash and ksh should be enough for a start.
Learn awk.
Install a Linux system as a VM (or even a dual boot), install Oracle and get comfortable with startup, shutdown, sqlplus etc.
Check this site for posts on Oracle and Linux - there are members here who work on Oracle on Linux. Look at the problems and see how they are solved.

Hope that helps.

durden_tyler

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LEARN ABOUT SUSE

apache::session::store::oracle

Session::Store::Oracle(3)				User Contributed Perl Documentation				 Session::Store::Oracle(3)

NAME

       Apache::Session::Store::Oracle - Store persistent data in a Oracle database

SYNOPSIS

	use Apache::Session::Store::Oracle;

	my $store = new Apache::Session::Store::Oracle;

	$store->insert($ref);
	$store->update($ref);
	$store->materialize($ref);
	$store->remove($ref);

DESCRIPTION

       Apache::Session::Store::Oracle fulfills the storage interface of Apache::Session. Session data is stored in a Oracle database.

SCHEMA

       To use this module, you will need at least these columns in a table called 'sessions':

	id varchar2(32)     # or however long your session IDs are.
	a_session long

       To create this schema, you can execute this command using the sqlplus program:

	CREATE TABLE sessions (
	   id varchar2(32) not null primary key,
	   a_session long
	);

       If you use some other command, ensure that there is a unique index on the table's id column.

CONFIGURATION

       The module must know what datasource, username, and password to use when connecting to the database.  These values can be set using the
       options hash (see Apache::Session documentation).  The options are DataSource, UserName, and Password.

       Example:

	tie %hash, 'Apache::Session::Oracle', $id, {
	    DataSource => 'dbi:Oracle:database',
	    UserName   => 'database_user',
	    Password   => 'K00l'
	};

       Instead, you may pass in an already-opened DBI handle to your database.

	tie %hash, 'Apache::Session::Oracle', $id, {
	    Handle => $dbh
	};

       The last option is LongReadLen, which specifies the maximum size of the session object.	If not supplied, the default maximum size is 8 KB.

AUTHOR

       This modules was written by Jeffrey William Baker <jwbaker@acm.org>

       A fix for the commit policy was contributed by Michael Schout <mschout@gkg.net>

SEE ALSO

       Apache::Session, Apache::Session::Store::DBI

perl v5.12.1							    2007-09-28						 Session::Store::Oracle(3)