Make more complete value with case statement : CASE « Function « SQL / MySQL






  1. SQL / MySQL
  2. Function
  3. CASE

Make more complete value with case statement

      
mysql>
mysql> CREATE   TABLE TEAMS
    ->         (TEAMNO         INTEGER      NOT NULL,
    ->          EmployeeNO       INTEGER      NOT NULL,
    ->          DIVISION       CHAR(6)      NOT NULL,
    ->          PRIMARY KEY    (TEAMNO)             );
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql>
mysql> INSERT INTO TEAMS VALUES (1,  6, 'first');
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO TEAMS VALUES (2, 27, 'second');
Query OK, 1 row affected (0.00 sec)

mysql>
mysql> SELECT   TEAMNO,
    ->          CASE DIVISION
    ->             WHEN 'first' then 'first division'
    ->             WHEN 'second' THEN 'second division'
    ->             ELSE 'unknown' END AS DIVISION
    -> FROM     TEAMS;
+--------+-----------------+
| TEAMNO | DIVISION        |
+--------+-----------------+
|      1 | first division  |
|      2 | second division |
+--------+-----------------+
2 rows in set (0.00 sec)

mysql>
mysql> drop table teams;
Query OK, 0 rows affected (0.00 sec)

mysql>








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