The most popular online advertising tool in market nowadays is Google AdWords. People who has something to offer in the form of products and services are diverting towards Google AdWords even if all of them are not getting the same return. Many people loose a lot of money either through fraud clicks or poor techniques adopted by them. Google adword is the top money making program and there are ways to use this program for free.
People loose a lot of money on Google AdWords but if they follow certain tips, this would give them a better CTR (click through rates) and help to generate more sales. In your Google AdWords posting Google allows you to put in a few sales punch lines.
As Google is the most used search engine in the world, every webmaster has the goal of getting listed in the top of Google results. All have their own ways to accomplish this objective. PPC (pay per click campaign) with Google AdWords is considered as the easiest way, no doubt it is expensive.
PPC campaigns are very useful to manage and optimize each individual ad. You can determine which ads are performing well and which are not. To monitor the ads you require constant monitoring of keywords and click thru rates. The other point to remember is the conversion ratio so that you can see how much money is spent by you in relation to the sales you are getting. There can be an instance where you had spent a lot of money in just a few minutes with no sales at all.
You need to follow certain tips for Google AdWords for successful advertising campaign. This can help to pick up your online sales and increase the rate of CTR (click through rate). Even through the task of posting a single Google adword campaign looks very easy still you need to follow the certain tips. These tips were generally introduced by Michael Cheney.
- Always capitalize your ads
- Generate killer headlines!
- Do not bother to compete with others on expensive keywords
- Concentrate on your ad phrases and study every possibility
- Throw questions back to your potential buyers that would see your ad
- Filter unnecessary target groups through the use of qualifiers in your ads
- Do not waste money on sticking more than one keyword for each single ad
- Learn from past mistakes and successes and built on them
Thus Google advertising can be fruitful if you follow the above guidelines carefully and optimally utilize your money through the use of AdWords and ppc campaigns.
Rajeev Guglani writes articles for SEO. He has vast exposure in writing for Web Promotions and Internet Resources. He is working for NDDW. For Google Advertising, Google Marketing and Pay per click management visit http://www.nddw.com
Rajeev Guglani
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Posted 13 February 2008
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Finding largest tables on MySQL instance is no brainier in MySQL 5.0+ thanks to Information Schema but I still wanted to post little query I use for the purpose so I can easily find it later, plus it is quite handy in a way it presents information:
SQL:
- mysql> SELECT concat(table_schema,‘.’,table_name),concat(round(table_rows/1000000,2),‘M’) rows,concat(round(data_length/(1024*1024*1024),2),‘G’)
DATA,concat(round(index_length/(1024*1024*1024),2),‘G’) idx,concat(round((data_length+index_length)/(1024*1024*1024),2),‘G’) total_size,round(index_length/data_length,2) idxfrac FROM information_schema.TABLES
ORDER
BY data_length+index_length DESC
LIMIT
10;
- +————————————-+——–+——–+——–+————+———+
- | concat(table_schema,‘.’,table_name) | rows | DATA | idx | total_size | idxfrac |
- +————————————-+——–+——–+——–+————+———+
- | art87.link_out87 | 37.25M | 14.83G | 14.17G | 29.00G | 0.96 |
- | art87.article87 | 12.67M | 15.83G | 4.79G | 20.62G | 0.30 |
- | art116.article116 | 10.49M | 12.52G | 3.65G | 16.18G | 0.29 |
- | art84.article84 | 10.10M | 10.11G | 3.59G | 13.70G | 0.35 |
- | art104.link_out104 | 23.66M | 6.63G | 6.55G | 13.18G | 0.99 |
- | art118.article118 | 7.06M | 10.49G | 2.68G | 13.17G | 0.26 |
- | art106.article106 | 9.86M | 10.19G | 2.76G | 12.95G | 0.27 |
- | art85.article85 | 6.20M | 9.82G | 2.51G | 12.33G | 0.26 |
- | art91.article91 | 8.66M | 9.17G | 2.66G | 11.83G | 0.29 |
- | art94.article94 | 5.21M | 10.10G | 1.69G | 11.79G | 0.17 |
- +————————————-+——–+——–+——–+————+———+
- 10 rows IN
SET
(2 min 29.19 sec)
I do some converting and rounding to see number of rows in millions and data and index size in GB so I can save on counting zeros.
The last column shows how much does the index take compared to the data which is mainly for informational purposes but for MyISAM can also help you to size your key buffer compared to operating system cache.
I also use it to see which tables may be worth to review in terms of indexes. Large index size compared to data size often indicates there is a lot of indexes (so it is well possible there are some duplicates, redundant or simply unused indexes among them) or may be there is long primary key with Innodb tables. Of course it also could be perfectly fine tables but it is worth to look.
Changing the query a bit to look for different sorting order or extra data - such as average row length you can learn quite a lot about your schema this way.
It is also worth to note queries on information_schema can be rather slow if you have a lot of large tables. On this instance it took 2.5 minutes to run for 450 tables.
UPDATE: To make things easier I’ve added INFORMATION_SCHEMA to the query so it works whatever database you have active. It does not work with MySQL before 5.0 still of course
Author: Peter - http://www.mysqlperformanceblog.com/2008/02/04/finding-out-largest-tables-on-mysql-server/
As MySQL Manual Says Query Cache works with transactions with Innodb tables but it does not tell you how and with which restrictions.
According to my tests it works but it is very restricted and one could expect it to work much better:
The result set can be retrieved from query cache (for statements both inside and outside of transactions) until there is a statement inside transactions which modifies the table. As soon as table is modified in transaction it becomes uncachable by query cache until that transaction is committed. Not only query cache can’t be used inside the same transaction which modified data but also in other concurrent transactions which do not even see the changes done yet
Of course such implementation is rather restricted. Queries outside of transactions well could use query cache until it is invalidated by committed transaction, however it was probably too hard to implement using current query cache infrastructure. With current approach Innodb can probably do something as simple as marking table “uncachable” if it has any uncommitted changed which would take care about all complicated aspects of change visibility in different transaction modes.
In most cases this limitation should not cause many problems (compared to general coarse table base invalidation it does) - only in case of long uncommitted transactions you will get data being uncachable for concurrent workload for a long time.
-
Author Peter - http://www.mysqlperformanceblog.com/2008/01/29/how-mysql-query-cache-works-with-transactions/
AJAX (Asynchronous JavaScript and XML), or Ajax, is a group of inter-related web development techniques used for creating interactive web applications. A primary characteristic is the increase in responsiveness and interactiveness of web pages, when a user makes a small change the request can be done “behind the scenes” where the whole page does not have to be reloaded each time.
AJAX is asynchronous in that extra data is requested from the server and loaded in the background without interfering with the display and behaviour of the existing page. JavaScript is the scripting language in which AJAX function calls are usually made. Data is retrieved using the XMLHttpRequest (or equivalent) object that is available to scripting languages run in modern browsers. There is, however, no requirement that the asynchronous content be formatted in XML.
AJAX is a cross-platform technique usable on many different operating systems, computer architectures, and web browsers as it is based on open standards such as JavaScript and the DOM.
Like DHTML, LAMP, and Ajax is not a technology in itself, but a term that refers to the use of a group of technologies.
The “core” and defining element of Ajax is the XMLHttpRequest object, which gives browsers the ability to make dynamic and asynchronous data requests without having to reload a page, eliminating the need for page refreshes.
Besides XMLHttpRequest, the use of DOM, CSS, and JavaScript provides a more-enhanced “single-page” experience.
The core justification for Ajax style programming is to overcome the page loading requirements of HTML/HTTP-mediated web pages. Ajax creates the necessary initial conditions for the evolution of complex, intuitive, dynamic, data-centric user interfaces in web pages—the realization of that goal is still a work in progress.
Some uses for Ajax interactions are the following
- Real-time form data validation: Like validation of email addresses, without having to go to the server to check if valid
- Auto completion: a specific portion of form data such as an email address, name, or city name may be auto completed as the user types.
- Load on demand: an HTML page can fetch more data in the background, allowing the browser to load pages more quickly
- Sophisticated user interface controls and effects
- Partial submit: An HTML page can submit form data as needed without requiring a full page refresh.
PHP is a computer programming language originally designed for producing dynamic web pages. The name PHP is a recursive initialism for PHP: Hypertext Pre-processor.
PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. PHP is a widely-used general-purpose scripting language that is especially well suited for Web development and can be embedded into HTML by using special tags eg. <?…?>. PHP generally runs on a web server, taking PHP code as its input and creating Web pages as output. However, it can also be used for command-line scripting and client-side GUI applications. PHP can be deployed on most web servers and on almost every operating system and platform free of charge.
From PHP 4 and onwards, the PHP parser compiles input to produce bytecode for processing by the Zend Engine, giving improved performance over its interpreter predecessor. PHP 5 uses the Zend Engine II.
Originally designed to create dynamic web pages, PHP’s principal focus is server-side scripting. While running the PHP parser with a web server and web browser, the PHP model can be compared to other server-side scripting languages such as Microsoft’s ASP.NET system, Sun Microsystems’ JavaServer Pages, mod_perl and the Ruby on Rails framework, as they all provide dynamic content to the client from a web server.
The LAMP architecture has become popular in the Web industry as a way of deploying inexpensive, reliable, scalable, secure web applications. PHP is commonly used as the P in this bundle alongside Linux, Apache and MySQL, although the P can also refer to Python or Perl. PHP can be used with a large number of relational database management systems, runs on all of the most popular web servers and is available for many different operating systems. This flexibility means that PHP has a wide installation base across the Internet.
ASP.NET is a web application framework marketed by Microsoft that programmers can use to build dynamic web sites, web applications and XML web services. It is part of Microsoft’s .NET platform and is the successor to Microsoft’s Active Server Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR).
ASP.net uses a text file format (.aspx) to create webform pages that normally contains HTML and XHTML markup, as well as markup defining Web User Controls and Web Controls. Furthermore, dynamic code which run on the web server can be placed within a block using special markup <% … %>. This is similar to other technologies such as ASP and PHP, but this practise of adding code inside is not recommended by Microsoft, since it requires more calls when rendering the page.
Microsoft recommends, when dealing with dynamic program code, to use the code-behind model, which places this code in a separate file or in a specially designated script tag. Code-behind files are typically named something to the effect of default.aspx.cs or default.aspx.vb based on the ASPX file name (this practice is automatic in Microsoft Visual Studio and other IDEs). When using this style of programming, the developer writes code to respond to different events, like the page being loaded, or a control being clicked, rather than a procedural walk through the document.
ASP.NET aims for performance benefits over other script-based technologies (including ASP Classic) by compiling the server-side code to one or more DLL files on the web server. This compilation happens automatically the first time a page is requested (which means the developer need not perform a separate compilation step for pages). This feature provides the ease of development offered by scripting languages with the performance benefits of a compiled binary. However, the compilation might cause a noticeable delay to the web user when the newly-edited page is first requested from the web server.
Microsoft Silverlight is a framework to create browser based rich Internet applications, providing a subset of the animation, vector graphics, and video playback capabilities of Windows Presentation Foundation. The runtime is available for Microsoft Windows and Mac OS X, with Linux support via the Moonlight framework.
Silverlight directly competes with Adobe Flash and Sun Microsystems’ JavaFX . It offers an alternative to Ajax programming techniques, which are commonly used to provide similar solutions to what these frameworks can do.
Overview
Silverlight integrates multimedia, graphics, animations and interactivity into a single runtime. It is designed to work with XAML and is scriptable with JavaScript and later, from version 1.1, also any .NET language. XAML is used for marking up the vector graphics and animations. Content created with Silverlight is easier searched and is easier indexed than that created with Flash as it is not compiled, but represented as text in the form of XAML.
Silverlight supports playback of WMV, WMA and MP3 media content across all supported browsers without requiring external plugins. Because Windows Media Video 9 is an implementation of the SMPTE VC-1 standard, Silverlight also supports VC-1 video; VC-1 is used as the Xbox 360 video game consoles official video codec.
Silverlight makes it possible to dynamically load XML content that can be manipulated through a DOM interface, a technique that is consistent with conventional Ajax techniques. Silverlight exposes a Downloader object which can be used to download content, like scripts, media assets or other data, as may be required by the application.
XAML or Extensible Application Markup Language is a markup language for declarative application programming. XAML is used as a user interface markup language to define user interface elements, data binding, events and other features.
Anything that is created or implemented in XAML can be expressed using a more traditional .NET language, such as C# or Visual Basic.NET. However, a key aspect of the technology is the reduced complexity needed for tools to process XAML, because it is simply XML. As a result, a variety of products are emerging which create XAML-based applications. As XAML is based on XML, developers and designers are able to share and edit content freely amongst each other without requiring compilation.
A short example of how XAML looks like,
<Canvas xmlns=”http://schemas.microsoft.com/client/2007″
xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml”>
<TextBlock>Hello World!</TextBlock>
</Canvas>
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