INSERT() function in MySQL

INSERT() : This function in MySQL is used for inserting a string within a string, removing a number of characters from the original string. Syntax :

INSERT(str, pos, len, newstr)

Parameters : This method accepts four parameter.

• str - Original string in which we want to insert another string.
• pos - The position where we want to insert another string.
• len - The number of characters to replace.
• newstr - The string to be inserted.

Returns : It returns a newly formed string. Example-1 : Inserting the string "mysql" into the string "geeksforgeeks" and replacing five characters, starting from position 9 with the help of INSERT Function.

SELECT INSERT("geeksforgeeks", 9, 5, "MySQL") 
AS NewString ;

Output :

NEWSTRING
geeksformysql

Example-2 : The following MySQL statement returns Original string, the actual string itself. This happens because the position of insertion, which is specified as -5, is out of range, so no insertion takes place.

SELECT INSERT("geeksforgeeks", -5, 5, "MySQL") 
AS NewString ;

Output :

NEWSTRING
geeksforgeeks

Example-3 : The following MySQL statement returns a completely new string. This happens because the position of insertion is 1 and length is number of character in previous string.

SELECT INSERT("geeksforgeeks", 1, 13, "stackoverflow") 
AS NewString ;

Output :

NEWSTRING
stackoverflow