How You Can Compare Data In Unicode

Before we take on how to compare data in Unicode, let us first learn what this term means. When someone speaks about Unicode, he is referring to the standard for the constant representation and management of text that is expressed in the common writing systems of the world. Unicode is actually linked with the Universal Character Set.

The most recent version of Unicode has over 170,000 characters that cover 90 scripts, code charts, character encodings and encoding methodology, upper and lower case characters, a group of reference data and related items. It also consists of right to left scripts and left to right scripts. Now, storing data in several languages within a single database alone can be quite difficult to manage especially when you are only using code pages and character data. For instance, if you are running a large business and you need to handle three different languages such as Spanish, French and English, you should guarantee that the database can handle all the characters of the three languages.

With the fast growth and development of the internet, there is a need for businessmen to support several client computers that are operating in various locales. This means that there is a need to select a code page for the different character data types so that the character support that is required will be handled well. However, this is particularly very difficult but there is an easy method to cope with this particularly those in international databases. The solution is to always make use of Unicode data types including nvarchar, nvarchar(max) and nchar instead of the equivalents that are in non-Unicode like varchar, text and char. Because of Unicode, there is no need to perform character translations anywhere in the system.

Now, let us say that you would like to compare data in Unicode with non-Unicode strings. Typically, Unicode data comparison is performed to test whether there are two or more strings that are the same or even different. If you are adept in programming, you can use the program language that you are very much familiar with to create a code that will help you in carrying out the task to contrast Unicode strings. In general, you will need to first decode the string that is not Unicode format. After that, your code should also be able to cover the part wherein you will need to compare the result with the string that is in Unicode. Lastly, you will have to create a code that will help you in knowing the encoding that is utilized for the string that is not in Unicode form. The result of the code will help you determine what type of string it is.

You can also compare data in Unicode by means of converting the non Unicode string to Unicode before you make the Unicode data comparison. If you are not well versed in creating source codes, you can always count on the tools that are designed to compare data in Unicode. They are all over the web and all you have to do is to search for the best utility that can aid you in your task.

By: Sam Miller

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