COERCIBILITY function : COERCIBILITY « Function « SQL / MySQL

1. SQL / MySQL
2. Function
3. COERCIBILITY

COERCIBILITY function

       
mysql>
mysql>
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   COERCIBILITY('Rick' COLLATE latin1_general_ci) AS C0,
    ->          COERCIBILITY(TEAMNO) AS C2,
    ->          COERCIBILITY(USER()) AS C3,
    ->          COERCIBILITY('Rick') AS C4,
    ->          COERCIBILITY(NULL) AS C5
    -> FROM     TEAMS
    -> WHERE    TEAMNO = 1;
+----+----+----+----+----+
| C0 | C2 | C3 | C4 | C5 |
+----+----+----+----+----+
|  0 |  2 |  3 |  4 |  5 |
+----+----+----+----+----+
1 row in set (0.00 sec)

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

mysql>

   
    
    
    
    
    
    
  

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