mysql类似merge的操作是怎么样的

今天就跟大家聊聊有关mysql类似merge的操作是怎么样的，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

mysql> truncate `200702`;

Query OK, 0 rows affected (0.01 sec)

mysql> select * from `200702`;

Empty set (0.01 sec)

mysql> insert into `200702` (`domain`, `2nd_domain`, `tld`, `query_ns1`, `query_ns2`, `report_date`) values (dnspod.com, dnspod, com, 1000, 2000, 2007-02-04) ON DUPLICATE KEY UPDATE `query_ns1` = `query_ns1` + 1000, `query_ns2` = `query_ns2` + 2000;

Query OK, 1 row affected (0.00 sec)

mysql> select * from `200702`;

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

| id | domain | 2nd_domain | tld | query_ns1 | query_ns2 | query_ns3 | query_ns4 | report_date |

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

| 1 | dnspod.com | dnspod | com | 1000 | 2000 | 0 | 0 | 2007-02-04 |

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

1 row in set (0.00 sec)

mysql> insert into `200702` (`domain`, `2nd_domain`, `tld`, `query_ns1`, `query_ns2`, `report_date`) values (dnspod.com, dnspod, com, 1000, 2000, 2007-02-04) ON DUPLICATE KEY UPDATE `query_ns1` = `query_ns1` + 1000, `query_ns2` = `query_ns2` + 2000;

Query OK, 2 rows affected (0.01 sec)

mysql> select * from `200702`;

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

| id | domain | 2nd_domain | tld | query_ns1 | query_ns2 | query_ns3 | query_ns4 | report_date |

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

| 1 | dnspod.com | dnspod | com | 2000 | 4000 | 0 | 0 | 2007-02-04 |

+----+------------+------------+------+-----------+-----------+-----------+-----------+-------------+

1 row in set (0.01 sec)

mysql>

当然，建表的时候，千万别忘记了给domain做一个unique

UNIQUE KEY `domain` (`domain`,`report_date`)

看完上述内容，你们对mysql类似merge的操作是怎么样的有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注行业资讯频道，感谢大家的支持。