插入50万条数据的时间简单比较。三个表song,song2,song3的字段一致。 mysql> desc song\G *************************** 1. row ***************************   Field: id    Type: int(11)    Null: NO     Key: PRI Default: NULL   Extra: auto_increment *************************** 2. row ***************************   Field: name    Type: text    Null: NO     Key: Default:   Extra: *************************** 3. row ***************************   Field: datetime    Type: timestamp    Null: NO     Key: Default: CURRENT_TIMESTAMP   Extra: *************************** 4. row ***************************   Field: rank    Type: int(11)    Null: NO     Key: Default:   Extra: 4 rows in set (0.00 sec) mysql> Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 2 Server version: 6.0.0-alpha-community-nt-debug MySQL Community Server (GPL) Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> call sp_insert_mod(500000); Query OK, 0 rows affected ( 1 min 7.27 sec) mysql> call sp_insert_mod2(500000); Query OK, 0 rows affected ( 1 min 19.81 sec) mysql> call sp_insert_mod3(500000); Query OK, 0 rows affected ( 1 min 33.17 sec) mysql> select count(*) from song; +----------+ | count(*) | +----------+ |   500000 | +----------+ 1 row in set ( 0.02 sec) mysql> select count(*) from song2; +----------+ | count(*) | +----------+ |   500000 | +----------+ 1 row in set ( 0.92 sec) mysql> select count(*) from song3; +----------+ | count(*) | +----------+ |   500000 | +----------+ 1 row in set ( 2.61 sec) mysql>exit Bye 当然你可以对MyISAM表使用MRG_MYISAM引擎来调高速度， 对INNODB表使用PARTITION 来提高速度。

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