Mysql charデータ型末尾スペース
charデータ型末尾スペース除去
InnoDBも同様
create table db_name(name char(10)) engine=myisam;
insert into db_namevalues("abcde"), ("abcde "), (" abcde"), (" abcde ");
mysql> select name, length(name) from myiasm_char;
+-----------+--------------+
| name | length(name) |
+-----------+--------------+
| abcde | 5 |
| abcde | 5 |
| abcde | 9 |
| abcde | 7 |
+-----------+--------------+
4 rows in set (0.00 sec)
InnoDBも同様