What is the STUFF Function and how does it Differ from the REPLACE Function

hi,

Stuff : This function can be used for delete a certain length of the string and insert a new string in the deleted place.

STUFF ( InputString, start, length, ReplacedString )

Replace : This function replaces all the occurrences of a string expression with a new string within an input string.

REPLACE ( InputString , StringToReplace , NewString )

http://sqlserverpedia.com/blog/sql-server-bloggers/sql-functions-%E2%80%93-stuff-and-replace/

hope this will help you.

Hi Arun,


STUFF function to overwrite existing characters. Using this syntax, STUFF(string_expression, start, length, replacement_characters), string_expression is the string that will have characters substituted, start is the starting position, length is the number of characters in the string that are substituted, and replacement_characters are the new characters interjected into the string.
REPLACE function to replace existing characters of all occurance. Using this syntax REPLACE(string_expression, search_string, replacement_string), where every incidence of search_string found in the string_expression will be replaced with replacement_string.


Please refer the below links

http://blog.sqlauthority.com/2007/04/19/sql-server-interview-questions-part-5/

Thanks

Check out Manish's article on the subject:

http://www.c-sharpcorner.com/blogs/888/replace-vs-stuff-in-sql-server-2005.aspx