SQL Subquery Exercises: Display the details of the current job for those employees who worked as a Sales Representative in the past
SQL SUBQUERY: Exercise-51 with Solution
From the following table, write a SQL query to find employees who have previously worked as 'Sales Representatives'. Return all the fields of jobs.
Sample table: jobs
Sample table: employees
Sample table: job_history
Sample Solution:
SELECT *
FROM jobs
WHERE job_id IN
(SELECT job_id
FROM employees
WHERE employee_id IN
(SELECT employee_id
FROM job_history
WHERE job_id='SA_REP'));
Sample Output:
job_id job_title min_salary max_salary SA_REP Sales Representative 6000 12000
Pictorial Presentation:

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Query Visualization:
Duration:

Rows:

Cost:

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Previous: From the following table, write a SQL query to find those managers who supervise four or more employees. Return manager name, department ID.
Next: From the following table, write a SQL query to find those employees who earn second-lowest salary of all the employees. Return all the fields of employees.
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SQL: Tips of the Day
"where 1=1" statement?
It's usually when folks build up SQL statements.
When you add and value = "Toyota" you don't have to worry about whether there is a condition before or just WHERE.
Ref: https://bit.ly/3cayyhJ
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