A less fine-grained summary can be obtained by using only the month values : Group « Select Clause « SQL / MySQL






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A less fine-grained summary can be obtained by using only the month values

       
mysql>
mysql> CREATE TABLE Master (
    ->   LahmanID char(10) NOT NULL default '',
    ->   Lastname char(25) default NULL,
    ->   Firstname char(25) default NULL,
    ->   Bats char(1) default NULL,
    ->   Throws char(1) default NULL,
    ->   BirthMonth int(11) default NULL,
    ->   BirthDay int(11) default NULL,
    ->   BirthYear int(11) default NULL,
    ->   Debut int(11) default NULL,
    ->   PRIMARY KEY  (LahmanID)
    -> ) TYPE=MyISAM;
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql>
mysql>
mysql> SELECT birthmonth, COUNT(*)
    -> FROM master
    -> WHERE birthmonth IS NOT NULL
    -> GROUP BY birthmonth;
Empty set (0.00 sec)

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

mysql>








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