MySQL中，当你需要大量测试数据时，可以这样做

喜欢ヅ旅行 2023-02-22 08:19 15阅读 0赞

先自己建立一个数据库，如：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70]

接下来，建立一个表：

CREATE TABLE `t_user` (
      `id` bigint(20) NOT NULL AUTO_INCREMENT,
      `name` varchar(255) DEFAULT NULL,
      `age` tinyint(4) DEFAULT NULL,
      `create_time` datetime DEFAULT NULL,
      `update_time` datetime DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

![在这里插入图片描述][20200702163614620.png]  
然后，我们使用存储过程，来生成大量数据，因为要写入磁盘，等待时间可能较长，这里时插入一千万条数据，想要更改生成数据条数，更改下这段脚本循环中的数字即可，我十分钟大概插入了15万条，慢慢等就行

delimiter $$
    DROP PROCEDURE IF EXISTS proc_batch_insert;
    CREATE PROCEDURE proc_batch_insert()
    BEGIN
    DECLARE pre_name BIGINT;
    DECLARE ageVal INT;
    DECLARE i INT;
    SET pre_name=187635267;
    SET ageVal=100;
    SET i=1;
    WHILE i < 1000000 DO
    		INSERT INTO t_user(`name`,age,create_time,update_time) VALUES(CONCAT(pre_name,'@qq.com'),(ageVal+i)%30,NOW(),NOW());
    SET pre_name=pre_name+100;
    SET i=i+1;
    END WHILE;
    END $$
    
    delimiter ;
    call proc_batch_insert();

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 1]  
慢慢等待即可，不断刷新数据库，就可以看到数据在不断增加

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 2]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 3]

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[20200702163614620.png]: https://img-blog.csdnimg.cn/20200702163614620.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200702164156897.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200702164232910.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200702164256853.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JvYl9tYW4=,size_16,color_FFFFFF,t_70