mysql> select * from user;
+------+----------+-----------+
| id | name | address |
+------+----------+-----------+
| 1 | xiaoming | beijing |
| 2 | xiaobai | shandong |
| 3 | xiaohong | suzhou |
| 4 | xiaohei | changchun |
+------+----------+-----------+
4 rows in set (0.00 sec)
mysql> insert user(id,name,address) values(5,"xiaoli","dongjing"),(6,"xiaohuang","meiguo");
Query OK, 2 rows affected (0.01 sec)
Records: 2 Duplicates: 0 Warnings: 0
mysql> insert user(id,name,address) select id,name,address from user where id=1;
Query OK, 1 row affected (0.01 sec)
Records: 1 Duplicates: 0 Warnings: 0
mysql> select * from user;
+------+-----------+-----------+
| id | name | address |
+------+-----------+-----------+
| 1 | xiaoming | beijing |
| 2 | xiaobai | shandong |
| 3 | xiaohong | suzhou |
| 4 | xiaohei | changchun |
| 5 | xiaoli | dongjing |
| 6 | xiaohuang | meiguo |
| 1 | xiaoming | beijing |
+------+-----------+-----------+
7 rows in set (0.00 sec)
mysql> insert into user(id,name,address) select id,name,address from user where id=1;
Query OK, 2 rows affected (0.01 sec)
Records: 2 Duplicates: 0 Warnings: 0
mysql> select * from user;
+------+-----------+-----------+
| id | name | address |
+------+-----------+-----------+
| 1 | xiaoming | beijing |
| 2 | xiaobai | shandong |
| 3 | xiaohong | suzhou |
| 4 | xiaohei | changchun |
| 5 | xiaoli | dongjing |
| 6 | xiaohuang | meiguo |
| 1 | xiaoming | beijing |
| 1 | xiaoming | beijing |
| 1 | xiaoming | beijing |
+------+-----------+-----------+
9 rows in set (0.00 sec)
