Retrieve data for multiple single or reference without like operator

Question

I have two tables, which looks like below. In the employee table instead mentioning the skills directly, I\'m using as reference from another table.

Question

Answer 1

As mentioned by others in the comments, this is not the most useful design choice as it would make it long winded to create a simple CRUD interface to interact with these values.

You would have ideally:

employee table:

+-----+-------------+
| id  | name        |
+-----+-------------+
| 1   | Bob         |
| 2   | Mary        |
+-----+-------------++

skillset table:

+-----+-------------+
| id  | skillset    |
+-----+-------------+
| 1   | Python      |
| 2   | Java        |
| 3   | C           |
| 4   | PHP         |
+-----+-------------+

employee_skillset table:

+-----+---------------+---------------+
| id  | employee_id   | skillset_id   |
+-----+---------------+---------------+
| 1   | 1             | 1             |
| 2   | 1             | 2             |
| 3   | 1             | 4             |
| 4   | 2             | 1             |
| 5   | 2             | 3             |
+-----+---------------+---------------+

Then you could do:

SELECT *
FROM employee e
INNER JOIN employee_skillset es
ON e.id = es.employee_id    
WHERE es.skillset_id = "1";

You could use the skillset table in the CRUD interface as selectable / editable options.

EDIT:

It's easy enough to include a range of skills within this too using the IN clause:

WHERE es.skillset_id IN (1, 3, 4);