MySQL如何快速的创建千万级测试数据

导入数据到临时表tmp_table中

mysql> load data infile '/Users/LJTjintao/temp/base.txt' replace into table tmp_table;
Query OK, 1000000 rows affected (2.55 sec)
Records: 1000000 Deleted: 0 Skipped: 0 Warnings: 0

千万级数据 20秒插入完成

注意： 导入数据时有可能会报错，原因是mysql默认没有开secure_file_priv（ 这个参数用来数据导入和导出操作的效果，例如执行LOAD DATA、SELECT … INTO OUTFILE语句和LOAD_FILE()函数。这些操作需要用户具有FILE权限。 ）

解决办法：在mysql的配置文件中（my.ini 或者 my.conf）中添加 secure_file_priv = /Users/LJTjintao/temp/` ,  然后重启mysql 解决

以临时表为基础数据，插入数据到t_user中，100W数据插入需要10.37s

mysql> INSERT INTO t_user
 -> SELECT
 -> id,
 -> uuid(),
 -> CONCAT('userNickName', id),
 -> FLOOR(Rand() * 1000),
 -> FLOOR(Rand() * 100),
 -> NOW()
 -> FROM
 -> tmp_table;
Query OK, 1000000 rows affected (10.37 sec)
Records: 1000000 Duplicates: 0 Warnings: 0

更新创建时间字段让插入的数据的创建时间更加随机

UPDATE t_user SET create_time=date_add(create_time, interval FLOOR(1 + (RAND() * 7)) year);

Query OK, 1000000 rows affected (5.21 sec)
Rows matched: 1000000 Changed: 1000000 Warnings: 0

mysql> UPDATE t_user SET create_time=date_add(create_time, interval FLOOR(1 + (RAND() * 7)) year);


Query OK, 1000000 rows affected (4.77 sec)
Rows matched: 1000000 Changed: 1000000 Warnings: 0

mysql> select * from t_user limit 30;
+----+--------------------------------------+----------------+---------------+-----------+---------------------+
| id | c_user_id | c_name | c_province_id | c_city_id | create_time |
+----+--------------------------------------+----------------+---------------+-----------+---------------------+
| 1 | bf5e227a-7b84-11e9-9d6e-751d319e85c2 | userNickName1 | 84 |  | 2015-11-13 21:13:19 |
| 2 | bf5e26f8-7b84-11e9-9d6e-751d319e85c2 | userNickName2 | 967 | 90 | 2019-11-13 20:19:33 |
| 3 | bf5e2810-7b84-11e9-9d6e-751d319e85c2 | userNickName3 | 623 | 40 | 2014-11-13 20:57:46 |
| 4 | bf5e2888-7b84-11e9-9d6e-751d319e85c2 | userNickName4 | 140 | 49 | 2016-11-13 20:50:11 |
| 5 | bf5e28f6-7b84-11e9-9d6e-751d319e85c2 | userNickName5 | 47 | 75 | 2016-11-13 21:17:38 |
| 6 | bf5e295a-7b84-11e9-9d6e-751d319e85c2 | userNickName6 | 2 | 94 | 2015-11-13 20:57:36 |
| 7 | bf5e29be-7b84-11e9-9d6e-751d319e85c2 | userNickName7 | 780 | 7 | 2015-11-13 20:55:07 |
| 8 | bf5e2a4a-7b84-11e9-9d6e-751d319e85c2 | userNickName8 | 39 | 96 | 2017-11-13 21:42:46 |
| 9 | bf5e2b58-7b84-11e9-9d6e-751d319e85c2 | userNickName9 | 731 | 74 | 2015-11-13 22:48:30 |
| 10 | bf5e2bb2-7b84-11e9-9d6e-751d319e85c2 | userNickName10 | 534 | 43 | 2016-11-13 22:54:10 |
| 11 | bf5e2c16-7b84-11e9-9d6e-751d319e85c2 | userNickName11 | 572 | 55 | 2018-11-13 20:05:19 |
| 12 | bf5e2c70-7b84-11e9-9d6e-751d319e85c2 | userNickName12 | 71 | 68 | 2014-11-13 20:44:04 |
| 13 | bf5e2cca-7b84-11e9-9d6e-751d319e85c2 | userNickName13 | 204 | 97 | 2019-11-13 20:24:23 |
| 14 | bf5e2d2e-7b84-11e9-9d6e-751d319e85c2 | userNickName14 | 249 | 32 | 2019-11-13 22:49:43 |
| 15 | bf5e2d88-7b84-11e9-9d6e-751d319e85c2 | userNickName15 | 900 | 51 | 2019-11-13 20:55:26 |
| 16 | bf5e2dec-7b84-11e9-9d6e-751d319e85c2 | userNickName16 | 854 | 74 | 2018-11-13 22:07:58 |
| 17 | bf5e2e50-7b84-11e9-9d6e-751d319e85c2 | userNickName17 | 136 | 46 | 2013-11-13 21:53:34 |
| 18 | bf5e2eb4-7b84-11e9-9d6e-751d319e85c2 | userNickName18 | 7 | 10 | 2018-11-13 20:03:55 |
| 19 | bf5e2f0e-7b84-11e9-9d6e-751d319e85c2 | userNickName19 | 829 | 83 | 2013-11-13 20:38:54 |
| 20 | bf5e2f68-7b84-11e9-9d6e-751d319e85c2 | userNickName20 | 683 | 91 | 2019-11-13 20:02:42 |
| 21 | bf5e2fcc-7b84-11e9-9d6e-751d319e85c2 | userNickName21 | 511 | 81 | 2013-11-13 21:16:48 |
| 22 | bf5e3026-7b84-11e9-9d6e-751d319e85c2 | userNickName22 | 562 | 35 | 2019-11-13 20:15:52 |
| 23 | bf5e3080-7b84-11e9-9d6e-751d319e85c2 | userNickName23 | 91 | 39 | 2016-11-13 20:28:59 |
| 24 | bf5e30da-7b84-11e9-9d6e-751d319e85c2 | userNickName24 | 677 | 21 | 2016-11-13 21:37:15 |
| 25 | bf5e3134-7b84-11e9-9d6e-751d319e85c2 | userNickName25 | 50 | 60 | 2018-11-13 20:39:20 |
| 26 | bf5e318e-7b84-11e9-9d6e-751d319e85c2 | userNickName26 | 856 | 47 | 2018-11-13 21:24:53 |
| 27 | bf5e31e8-7b84-11e9-9d6e-751d319e85c2 | userNickName27 | 816 | 65 | 2014-11-13 22:06:26 |
| 28 | bf5e324c-7b84-11e9-9d6e-751d319e85c2 | userNickName28 | 806 | 7 | 2019-11-13 20:17:30 |
| 29 | bf5e32a6-7b84-11e9-9d6e-751d319e85c2 | userNickName29 | 973 | 63 | 2014-11-13 21:08:09 |
| 30 | bf5e3300-7b84-11e9-9d6e-751d319e85c2 | userNickName30 | 237 | 29 | 2018-11-13 21:48:17 |
+----+--------------------------------------+----------------+---------------+-----------+---------------------+
30 rows in set (0.01 sec)

总结