STUFF():-
STUFF is SQL SERVER function which is used to insert the string in another string. It deletes the specified number of characters from first string and insert the new string in the place of deleted string.
Syntex:-
STUFF ( expression , start , length , replaceWith_expression )
Where expression can be a variable or column, start is the int values which specifies the deletion and insertion index,length is the integer which specifies the number of characters to be deleted and replaceWith_expression is the values which is to be inserted.
Example:-
![](data:image/png;base64,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)
In the above example we can see "SQL" string is replaced with "Microsoft"
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