mysql> select "name",id from table_b; //"name" 不在table_b表中 +------+-----------+ | name | id | +------+-----------+ | name | 123456 | | name | 1234567 | | name | 12345678 | | name | 123456789 | +------+-----------+ 4 rows in set (0.00 sec)
复制代码 代码如下: mysql> insert into table_a(name,b_refer) select "name", id from table_b; //"name" 不在table_b表中 Query OK, 4 rows affected (0.03 sec)