Contenido del Curso
SQL Intermedio
SQL Intermedio
Desafío de Empleados con un Salario Superior al Promedio
When a subquery is written in the WHERE
section, we can use the IN
operator and comparison operators
:
Mencioné anteriormente que cuando una subconsulta se escribe en la sección WHERE
, podemos utilizar el operador IN
y los operadores de comparación
.
Por ejemplo, así:
Swipe to show code editor
Find employees whose salary
is above the average salary of all employees using a subquery in the WHERE
section.
The resulting table should have 3 columns: first_name
, last_name
, and salary
. Then, sort the result by salary from highest to lowest using ORDER BY
.
Note
This syntax can be used as a great alternative to the
HAVING
clause.
Brief Instructions
- Retrieve the
first_name
,last_name
, andsalary
columns from theemployees
table. - In the
WHERE
clause, use an inner query with the syntaxsalary > [inner query]
. - In the inner query, get the average value of the
salary
column from theemployees
table. - Sort the results by
salary
in descending order.
¡Gracias por tus comentarios!
Desafío de Empleados con un Salario Superior al Promedio
When a subquery is written in the WHERE
section, we can use the IN
operator and comparison operators
:
Mencioné anteriormente que cuando una subconsulta se escribe en la sección WHERE
, podemos utilizar el operador IN
y los operadores de comparación
.
Por ejemplo, así:
Swipe to show code editor
Find employees whose salary
is above the average salary of all employees using a subquery in the WHERE
section.
The resulting table should have 3 columns: first_name
, last_name
, and salary
. Then, sort the result by salary from highest to lowest using ORDER BY
.
Note
This syntax can be used as a great alternative to the
HAVING
clause.
Brief Instructions
- Retrieve the
first_name
,last_name
, andsalary
columns from theemployees
table. - In the
WHERE
clause, use an inner query with the syntaxsalary > [inner query]
. - In the inner query, get the average value of the
salary
column from theemployees
table. - Sort the results by
salary
in descending order.
¡Gracias por tus comentarios!