兩個字符串之間的區別mysql

Question

我想查找兩個字符串在MySQL中的區別。比方說，如果輸入了像尼僧和尼莎這樣的兩個字符串，那麼應該輸出'nt'。

Answer 1

set @string2 :="nishant"; 
Query OK, 0 rows affected (0.00 sec) 

set @string1 := "nisha"; 
Query OK, 0 rows affected (0.00 sec) 

select @string1, @string2; 
+----------+----------+ 
| @string1 | @string2 | 
+----------+----------+ 
| nisha | nishant | 
+----------+----------+ 
1 row in set (0.00 sec) 

select if(length(@string1)>length(@string2), replace(@string1, @string2,""), replace(@string2, @string1, "")) as "The Difference"; 
+----------------+ 
| The Difference | 
+----------------+ 
| nt    | 
+----------------+ 
1 row in set (0.00 sec)