A colleague at work asked me “how can I run a case sensitive select on a case insensitive table?” out of curiosity and for a moment I hesitated, then said, yeah why not :) ….

Below are two different approaches (one of which is quite inefficient) and if anyone has another way, better or worse, please do leave a comment with your suggested approach :).

Cheers,
Darren

Preparation


mysql [localhost] {root} (test) > create table t1(a varchar(20));
Query OK, 0 rows affected (0.02 sec)

mysql [localhost] {root} (test) > insert into t1 (a) values ('darren');
Query OK, 1 row affected (0.00 sec)

mysql [localhost] {root} (test) > insert into t1 (a) values ('Darren');
Query OK, 1 row affected (0.00 sec)

mysql [localhost] {root} (test) > insert into t1 (a) values ('DarRen');
Query OK, 1 row affected (0.00 …