Question

I have a mysql table EMPLOYEE

+-------------------+--------------+------+-----+---------+-------+
| Field             | Type         | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| id                | int(11)      | YES  |     | NULL    |       |
| name              | varchar(30)  | YES  |     | NULL    |       |
| age               | int(11)      | YES  |     | NULL    |       |
| start_salary      | int(11)      | YES  |     | NULL    |       |
| current_salary    | int(11)      | YES  |     | NULL    |       |
| address           | varchar(255) | YES  |     | NULL    |       |
| designation       | varchar(10)  | YES  |     | NULL    |       |
+-======------------+--------------+------+-----+---------+-------+

Now, I would want to do a select statement like

SELECT (current_salary/start_salary) appraisal, * from EMPLOYEE;

But the above statement is not valid in mysql. This is not homework but a dummy eg. Is it possible to have an extra column along with all existing columns of a table using * as wildcard operator?

What is the best way to do something like this?

Answer 1

Yes absolutely. Trick is simple, just put the wildcard FIRST.
That’s it!

SELECT *, (current_salary/start_salary) appraisal from EMPLOYEE;