简单记录mysql中inser into select语句测试_MySQL

mysql迅速制造大批数据，复制一个表中的（部分或全部）数据到另一个表中。

用法：INSERT INTO table_name1 (field1,field2) SELECT field1,field2 FROM table_name2;

前提条件

CREATE TABLE `user` (`id` int(10) NOT NULL AUTO_INCREMENT,`username` varchar(30) NOT NULL,`password` char(32) NOT NULL,PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;CREATE TABLE `user_his` (`his_id` int(10) NOT NULL AUTO_INCREMENT,`id` int(10) NOT NULL,`username` varchar(30) NOT NULL,`password` char(32) NOT NULL,PRIMARY KEY (`his_id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;

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CREATETABLE`user`( `id`int(10)NOT NULLAUTO_INCREMENT, `username`varchar(30)NOT NULL, `password`char(32)NOT NULL, PRIMARY KEY(`id`) )ENGINE=InnoDBDEFAULTCHARSET=utf8; CREATETABLE`user_his`( `his_id`int(10)NOT NULLAUTO_INCREMENT, `id`int(10)NOT NULL, `username`varchar(30)NOT NULL, `password`char(32)NOT NULL, PRIMARY KEY(`his_id`) )ENGINE=InnoDBDEFAULTCHARSET=utf8;

mysql> desc user;+----------+-------------+------+-----+---------+----------------+| Field| Type| Null | Key | Default | Extra|+----------+-------------+------+-----+---------+----------------+| id | int(10) | NO | PRI | NULL| auto_increment || username | varchar(30) | NO | | NULL||| password | char(32)| NO | | NULL||+----------+-------------+------+-----+---------+----------------+3 rows in set (0.00 sec)mysql> desc user_his;+----------+-------------+------+-----+---------+----------------+| Field| Type| Null | Key | Default | Extra|+----------+-------------+------+-----+---------+----------------+| his_id | int(10) | NO | PRI | NULL| auto_increment || id | int(10) | NO | | NULL||| username | varchar(30) | NO | | NULL||| password | char(32)| NO | | NULL||+----------+-------------+------+-----+---------+----------------+4 rows in set (0.01 sec)

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mysql>descuser; +----------+-------------+------+-----+---------+----------------+ |Field |Type |Null|Key|Default|Extra | +----------+-------------+------+-----+---------+----------------+ |id |int(10) |NO |PRI|NULL |auto_increment| |username|varchar(30)|NO | |NULL | | |password|char(32) |NO | |NULL | | +----------+-------------+------+-----+---------+----------------+ 3rowsinset(0.00sec) mysql>descuser_his; +----------+-------------+------+-----+---------+----------------+ |Field |Type |Null|Key|Default|Extra | +----------+-------------+------+-----+---------+----------------+ |his_id |int(10) |NO |PRI|NULL |auto_increment| |id |int(10) |NO | |NULL | | |username|varchar(30)|NO | |NULL | | |password|char(32) |NO | |NULL | | +----------+-------------+------+-----+---------+----------------+ 4rowsinset(0.01sec)

插入原始数据

mysql> INSERT INTO `user`(`username`,`password`) VALUES ('hello','123456'),('twitter','123456'),('baidu','123456'),('google','123456'),('facebook','123456'),('linux','123456'),('cisco','123456'),('huawei','123456'),('lenovo','123456'),('apple','123456'),('oracle','123456'),('sun','123456');

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mysql>INSERTINTO`user`(`username`,`password`)VALUES('hello','123456'),('twitter','123456'),('baidu','123456'),('google','123456'),('facebook','123456'),('linux','123456'),('cisco','123456'),('huawei','123456'),('lenovo','123456'),('apple','123456'),('oracle','123456'),('sun','123456');

复制数据到历史表

mysql> INSERT INTO `user_his`(`id`,`username`,`password`) select `id`,`username`,`password` from `user`;

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mysql>INSERTINTO`user_his`(`id`,`username`,`password`)select`id`,`username`,`password`from`user`;

附加mysql大批量复制数据，时间变化：

在自己的电脑上测试（Ubuntu14.04 LTS 64位 + xampp），前3000条数据速度比较快，3000条以后执行时间成倍增加，2万5千条数据执行时间1分钟。314万数据，两分29秒

mysql> insert into user(username,password) select username,password from user;

Query OK, 12 rows affected, 1 warning (0.07 sec)

Records: 12 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;

Query OK, 24 rows affected, 1 warning (0.08 sec)

Records: 24 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;

Query OK, 48 rows affected, 1 warning (0.11 sec)

Records: 48 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;

Query OK, 96 rows affected, 1 warning (0.10 sec)

Records: 96 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;

Query OK, 192 rows affected, 1 warning (0.10 sec)

Records: 192 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;

Query OK, 384 rows affected, 1 warning (0.10 sec)

Records: 384 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 768 rows affected, 1 warning (0.13 sec)

Records: 768 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 1536 rows affected, 1 warning (0.15 sec)Records: 1536 Duplicates: 0 Warnings: 1

mysql>

mysql> insert into user(username,password) select username,password from user;/

Query OK, 3072 rows affected, 1 warning (0.17 sec)

Records: 3072 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 6144 rows affected, 1 warning (0.28 sec)

Records: 6144 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 12288 rows affected, 1 warning (0.42 sec)

Records: 12288 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 24576 rows affected, 1 warning (0.99 sec)

Records: 24576 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 49152 rows affected, 1 warning (1.98 sec)

Records: 49152 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 98304 rows affected, 1 warning (4.04 sec)

Records: 98304 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 196608 rows affected, 1 warning (8.89 sec)

Records: 196608 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 393216 rows affected, 1 warning (17.14 sec)

Records: 393216 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 786432 rows affected, 1 warning (38.07 sec)

Records: 786432 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 1572864 rows affected, 1 warning (1 min 11.91 sec)

Records: 1572864 Duplicates: 0 Warnings: 1

mysql> insert into user(username,password) select username,password from user;/

Query OK, 3145728 rows affected, 1 warning (2 min 29.04 sec)

Records: 3145728 Duplicates: 0 Warnings: 1