October 31, 2008 06:39 by
mic1. Introduction
The Oracle Relational Database Management System (RDBMS) is an
industry leading database system designed for mission critical data
storage and retrieval. The RDBMS is responsible for accurately
storing data and efficiently retrieving that data in response to
user queries.
...
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October 31, 2008 05:11 by
micWhat is SQL*Plus and where does it come from?
SQL*Plus is a command line SQL and PL/SQL
language interface and reporting tool that ships with the Oracle
Database Client and Server software. It can be used interactively or
driven from scripts. SQL*Plus is frequently used by DBAs and Developers ...
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October 25, 2008 16:30 by
micCharacter literals
/a/
Mary had a little lamb.
And everywhere that Mary
went, the lamb was sure
to go.
/Mary/
Mary had a little lamb.
And everywhere that Mary
went, the lamb was sure
to go.
The very simplest pattern m...
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October 24, 2008 21:49 by
micUsing Regular Expressions
To check if there is a match in a string Perl uses special operator =~. Usual syntax
is:
variable =~ m/regular_expression/
The result of this operator is either true (if there is a match) or false (no match). The following example
checks if a string contains a phon...
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October 24, 2008 21:24 by
mic
Entering Special Characters
<Comma>
,
<Nul>
^@
<Period>
.
<Space>
...
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October 24, 2008 06:56 by
micSEARCH & REPLACE.
Just as the title implies, this is to look for certain patterns and replace them with a different specified string.
Substitution is specified with s.
It is placed before the first forward slash surrounding the search
expression. The string that will be used to rep...
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October 24, 2008 04:38 by
micIntroduction
Without regular expressions, Perl would be a fast development environment.
Probably a little faster than VB for console apps. With the addition of regular
expressions, Perl exceeds other RAD environments five to twenty-fold in the
hands of an experienced practitioner, on console app...
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October 16, 2008 17:59 by
micsudo /etc/init.d/vboxdrv setup
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October 14, 2008 21:07 by
micIf you're like me, one of the inputs on your TV is your desktop or laptop computer. It's one of the best ways to surf the web or share pictures and videos with others. But my favorite feature, hands down, is the ability to have my entire DVD collection available to me in a very in...
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October 12, 2008 02:04 by
micRegular Expression Basic Syntax Reference
Characters
CharacterDescriptionExample
Any character except [\^$.|?*+()
All characters except the listed special characters match a single instance of themselves. { and } are literal characters, unless they're pa...
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