标题说明了一切。我得到了一位餐桌教练:
mysql> describe instructor;
+-----------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+--------------+------+-----+---------+-------+
| ID | char(5) | NO | PRI | NULL | |
| name | varchar(20) | YES | | NULL | |
| dept_name | varchar(20) | YES | | NULL | |
| salary | decimal(8,2) | YES | | NULL | |
+-----------+--------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
我必须为此数据库查询编写 SQL 语句:
Ơ dept_name="物理"(讲师)