需求描述:
今天在看一本mysql的书籍,发现一个mysql中insert into好用的技巧,就是通过
1条insert into语句,插入多行数据,而不是多个insert into语句。在此记录下。
测试过程:
1.常规的通过多个insert into语句插入多行数据
create table tab_ts01(id int,num01 int); insert into tab_ts01 values (1,2); insert into tab_ts01 values (2,3); insert into tab_ts01 values (5,55); insert into tab_ts01 values (40,22);
执行过程:
mysql> drop table if exists tab_ts01; Query OK, 0 rows affected (0.08 sec) mysql> create table tab_ts01(id int,num01 int); Query OK, 0 rows affected (0.03 sec) mysql> insert into tab_ts01 values (1,2); Query OK, 1 row affected (0.02 sec) mysql> insert into tab_ts01 values (2,3); Query OK, 1 row affected (0.01 sec) mysql> insert into tab_ts01 values (5,55); Query OK, 1 row affected (0.01 sec) mysql> insert into tab_ts01 values (40,22); Query OK, 1 row affected (0.01 sec) mysql> select * from tab_ts01; +------+-------+ | id | num01 | +------+-------+ | 1 | 2 | | 2 | 3 | | 5 | 55 | | 40 | 22 | +------+-------+ 4 rows in set (0.00 sec)
2.通过一条insert into语句,插入多行值
drop table if exists tab_ts01; create table tab_ts01(id int,num01 int); insert into tab_ts01 values (1,2),(2,3),(5,55),(40,22);
执行过程:
mysql> drop table if exists tab_ts01; Query OK, 0 rows affected (0.01 sec) mysql> create table tab_ts01(id int,num01 int); Query OK, 0 rows affected (0.12 sec) mysql> insert into tab_ts01 values (1,2),(2,3),(5,55),(40,22); Query OK, 4 rows affected (0.01 sec) Records: 4 Duplicates: 0 Warnings: 0 mysql> select * from tab_ts01; +------+-------+ | id | num01 | +------+-------+ | 1 | 2 | | 2 | 3 | | 5 | 55 | | 40 | 22 | +------+-------+ 4 rows in set (0.00 sec)
备注:发现通过一条insert into语句能够达到与多个insert into语句同样的效果,而且更加的方便,可以作为一个小技巧。
文档创建时间:2018年3月21日15:02:39