Mega Code Archive
Looking for an exact match in a set column
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Comparing set values to 'val1,val2' returns different results than comparing values to 'val2,val1'.
mysql>
mysql> SELECT * FROM tbl_name WHERE set_col = 'val1,val2';
mysql>
mysql> CREATE TABLE myset (col SET('a', 'b', 'c', 'd'));
Query OK, 0 rows affected (0.02 sec)
mysql> INSERT INTO myset (col) VALUES ('a,d'),
-> ('d,a'),
-> ('a,d,a'),
-> ('a,d,d'),
-> ('d,a,d');
Query OK, 5 rows affected (0.00 sec)
Records: 5 Duplicates: 0 Warnings: 0
mysql> SELECT col FROM myset;
+------+
| col |
+------+
| a,d |
+------+
5 rows in set (0.00 sec)
mysql>
mysql> SELECT * FROM myset WHERE col = 'a,d';
+------+
| col |
+------+
| a,d |
+------+
5 rows in set (0.00 sec)
mysql>
mysql> drop table myset;
Query OK, 0 rows affected (0.00 sec)
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