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Programming Ruby - The Pragmatic Programmer's Guide
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Last Update 2006/7/28 6:47
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Category
Programming
Ruby
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Description
This book is a tutorial and reference for the Ruby programming language. Use Ruby, and you'll write better code, be more productive, and enjoy programming more. These are bold claims, but we think that after reading this book you'll agree with them. And we have the experience to back up this belief.
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Hits: 25
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Filtering and Grouping: A Comparison of SQL, Linux Scripting, and Ruby
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Last Update 2008/1/30 6:47
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Category
Database
SQL Language
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Database
Oracle
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Programming
Ruby
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Description
In this article you will learn some of the transferable concepts common to Oracle SQL, Linux operating system commands, and scripting. In particular, it will show how to use a "set oriented" way of thinking about problems that involve sets of data that need to be grouped, sorted, and filtered. These operations are familiar to those with a knowledge of SQL but are also often required when using Linux commands and or the Ruby programming language.
I will not an attempt to discuss mathematical set theory in any sort of rigorous disciplined fashion. Instead, all the fuzzy boundaries that exist in human language (and typical business problems) can be found throughout. Oracle SQL provides a much purer way of manipulating sets of data than scripting: each column contains fields of a defined type, and the logical data is handled independently of the underlying physical representation. Data returned from a query is not the same in any formal sense as the output of a shell command. The intent of what follows is pedagogical, to provide some analogies that are familiar to those who know SQL to leverage their problem solving abilities when required to work outside the database. It will provide a different perspective for approaching problems and encourage you to delve into new and unfamiliar areas.
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Hits: 23
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Speeding up Ruby on Rails
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Last Update 2010/8/12 13:24
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Category
Programming
Ruby
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Description
Ruby on Rails, a popular Web development framework based on the Ruby programming language, makes it easy to access your database, but it does not always do so efficiently. Learn more about common performance problems with Rails and discover how you can fix them.
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Hits: 14
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Advanced Active Record in Rails 4
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Last Update 2014/7/28 12:57
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Category
Programming
Ruby
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Description
In this chapter from The Rails 4 Way, 3rd Edition, Obie Fernandez and Kevin Faustino wrap up their comprehensive coverage of Active Record by reviewing callbacks, single-table inheritance (STI), and polymorphic models. They also review a little bit of information about metaprogramming and Ruby domain-specific languages (DSLs) as they relate to Active Record.
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Hits: 169
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