Mega Code Archive
Check the set value by bin
<![CDATA[
mysql>
mysql> CREATE TABLE TEAMS_NEW
-> (TEAMNO INTEGER NOT NULL PRIMARY KEY,
-> EmployeeNO INTEGER NOT NULL,
-> DIVISION SET ('first','second','third','fourth'));
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> INSERT INTO TEAMS_NEW VALUES (1, 27, 'first')
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (2, 27, 'first,third')
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (3, 27, 'first,third,sixth')
-> ;
Query OK, 1 row affected, 1 warning (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (4, 27, 'first,fifth')
-> ;
Query OK, 1 row affected, 1 warning (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (5, 27, NULL)
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (6, 27, 7)
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO TEAMS_NEW VALUES (7, 27, CONV(1001,2,10))
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM TEAMS_NEW;
+--------+------------+--------------------+
| TEAMNO | EmployeeNO | DIVISION |
+--------+------------+--------------------+
| 1 | 27 | first |
| 2 | 27 | first,third |
| 3 | 27 | first,third |
| 4 | 27 | first |
| 5 | 27 | NULL |
| 6 | 27 | first,second,third |
| 7 | 27 | first,fourth |
+--------+------------+--------------------+
7 rows in set (0.00 sec)
mysql>
mysql> SELECT TEAMNO, DIVISION * 1, BIN(DIVISION * 1)
-> FROM TEAMS_NEW;
+--------+--------------+-------------------+
| TEAMNO | DIVISION * 1 | BIN(DIVISION * 1) |
+--------+--------------+-------------------+
| 1 | 1 | 1 |
| 2 | 5 | 101 |
| 3 | 5 | 101 |
| 4 | 1 | 1 |
| 5 | NULL | NULL |
| 6 | 7 | 111 |
| 7 | 9 | 1001 |
+--------+--------------+-------------------+
7 rows in set (0.00 sec)
mysql>
mysql> drop table TEAMS_NEW;
Query OK, 0 rows affected (0.00 sec)
mysql>
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