Duplicate entry for key 'PRIMARY' .Ignoring the spaces for strings

Question

mysql> CREATE TABLE primary2(boom text,id int,PRIMARY KEY(boom(5)) );
Query OK, 0 rows affected (0.04 sec)

mysql> INSERT INTO primary2 VALUES(\'viok\',1);
Que         


        

Answer 1

MySQL ignores trailing spaces in string comparisons. One way is to add a column to store number of trailing spaces the text has.

One way is to store it as varchar, which allows trailing spaces.