EasySQL challenge #21WHERE

Find Employees Earning More Than 50,000

Return the employees whose salary is above 50,000.

The challenge runs on the SQLabHub practice database (SQLite) and uses the employees table. You can solve it in the browser, with nothing to install.

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The task

Find employees with salary greater than 50000.

A correct answer returns 119 rows with 12 columns: id, first_name, last_name, email, department, department_id, title, salary, hire_date, manager_id, city, status.

Tables used in this challenge

`employees` 120 rows

id INTEGER (PK) · first_name TEXT · last_name TEXT · email TEXT · department TEXT · department_id INTEGER · title TEXT · salary REAL · hire_date TEXT · manager_id INTEGER · city TEXT · status TEXT

First 3 rows of the employees table
id	first_name	last_name	email	department	department_id	title	salary	hire_date	manager_id	city	status
1	William	Lewis	wlewis18@corp.io	Customer Success	7	Senior CS Manager	61774	2022-07-24	NULL	San Diego	active
2	John	Miller	jmiller51@corp.io	Legal	8	Paralegal	191694	2021-08-09	NULL	San Diego	active
3	Daniel	Rivera	drivera50@corp.io	Engineering	1	VP Engineering	135067	2016-06-06	NULL	Houston	active

The first rows of each table are shown. See how all the tables relate on the database schema page.

Expected output

Expected output of the challenge
id	first_name	last_name	email	department	department_id	title	salary	hire_date	manager_id	city	status
1	William	Lewis	wlewis18@corp.io	Customer Success	7	Senior CS Manager	61774	2022-07-24	NULL	San Diego	active
2	John	Miller	jmiller51@corp.io	Legal	8	Paralegal	191694	2021-08-09	NULL	San Diego	active
3	Daniel	Rivera	drivera50@corp.io	Engineering	1	VP Engineering	135067	2016-06-06	NULL	Houston	active
4	Melissa	Smith	msmith33@corp.io	Engineering	1	VP Engineering	51465	2022-04-13	NULL	Fort Worth	active
5	Jason	Mitchell	jmitchell78@corp.io	Design	10	Product Designer	156865	2019-10-17	NULL	Denver	active

First 5 of 119 rows. This is the output of the model solution on the practice database. The task does not fix a sort order, so your rows may come back in a different order.

What you practise

Returning every column of a table with SELECT *
Filtering rows with a WHERE condition

Hint and approach

Try the challenge first. Open these only when you need them.

Show the hint

Use WHERE salary > value

Show the step-by-step approach

How the model solution is built, in the order the database evaluates it:

Read from the employees table.
Filter in WHERE: keep the rows where salary is greater than 50000.
Return every column with SELECT *.

Model solution

Checking your session…

What to watch for

Numbers are written without quotes or thousands separators. > leaves out anyone earning exactly 50,000; use >= if the threshold itself should count.

WHERE. WHERE is evaluated before the SELECT list, so it cannot use a column alias defined there or the result of an aggregate.
SELECT *. SELECT * is fine for exploring, but its output changes whenever a column is added to the table. Queries that feed a report should name their columns.

Solve This SQL Challenge

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Same technique, other tables

More practice on this pattern with different columns:

Keep learning

Lesson: WHERE Clause
Lesson: The BIG 6 SQL Clauses
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