Define Stuff Function and Replace Function.
Stuff FunctionIt replaces existing character.
SyntaxSTUFF(string_expression, start, length, replacement_characters)
Replace FunctionIt replaces existing character of all occurrences.
REPLACE(string_expression, search_string, replacement_string)
Define Stuff Function and Replace Function.
Both STUFF and REPLACE are used to replace characters in a string.
select replace('abcdef','ab','xx') results in xxcdef
select replace('defdefdef','def','abc') results in abcabcabc
We cannot replace a specific occurrence of “def” using REPLACE.
select stuff('defdefdef',4, 3,'abc') results in defabcdef, where 4 is the character to begin replace from and 3 is the number of characters to replace.
