SQL Exercise: Analysts or managers with a salary range, no commission
SQL employee Database: Exercise-59 with Solution
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59. From the following table, write a SQL query to search for employees who are working either as a MANAGER or an ANALYST with a salary between 2000 and 5000 (Begin and end values are included.) without commissions. Return complete information about the employees.
Sample table: employees
Pictorial Presentation:

Sample Solution:
SELECT *
FROM employees
WHERE job_name IN ('MANAGER',
'ANALYST')
AND salary BETWEEN 2000 AND 5000
AND commission IS NULL;
Sample Output:
emp_id | emp_name | job_name | manager_id | hire_date | salary | commission | dep_id --------+----------+----------+------------+------------+---------+------------+-------- 66928 | BLAZE | MANAGER | 68319 | 1991-05-01 | 2750.00 | | 3001 67832 | CLARE | MANAGER | 68319 | 1991-06-09 | 2550.00 | | 1001 65646 | JONAS | MANAGER | 68319 | 1991-04-02 | 2957.00 | | 2001 67858 | SCARLET | ANALYST | 65646 | 1997-04-19 | 3100.00 | | 2001 69062 | FRANK | ANALYST | 65646 | 1991-12-03 | 3100.00 | | 2001 (5 rows)
Explanation:
The given query in SQL that selects all columns from the 'employees' table where the job name is either 'MANAGER' or 'ANALYST', the salary is between 2000 and 5000, and the commission is NULL .
The "WHERE" clause restricts the results to employees whose job_name is either 'MANAGER' or 'ANALYST' using the "IN" operator to check if the job_name value matches either of the given values in the list and also filters the result set to employees whose salary falls within the range of 2000 and 5000 using the "BETWEEN" operator and it again used "IS NULL" operator that filters the results to employees whose commission is NULL.
Practice Online
Sample Database: employee

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Previous SQL Exercise: Salary of FRANK if his salary is equal to max_sal.
Next SQL Exercise: List the employees at a given place for over 10 years.
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SQL: Tips of the Day
Grouped LIMIT in PostgreSQL: Show the first N rows for each group?
db=# SELECT * FROM xxx; id | section_id | name ----+------------+------ 1 | 1 | A 2 | 1 | B 3 | 1 | C 4 | 1 | D 5 | 2 | E 6 | 2 | F 7 | 3 | G 8 | 2 | H (8 rows)
I need the first 2 rows (ordered by name) for each section_id, i.e. a result similar to:
id | section_id | name ----+------------+------ 1 | 1 | A 2 | 1 | B 5 | 2 | E 6 | 2 | F 7 | 3 | G (5 rows)
PostgreSQL v9.3 you can do a lateral join
select distinct t_outer.section_id, t_top.id, t_top.name from t t_outer join lateral ( select * from t t_inner where t_inner.section_id = t_outer.section_id order by t_inner.name limit 2 ) t_top on true order by t_outer.section_id;
Database: PostgreSQL
Ref: https://bit.ly/3AfYwZI
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