Q:

Write a query in SQL to list the employees of the grade same as the grade of TUCKER or experience is more than SANDRINE and who are belonging to SYDNEY or PERTH

hamza
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2022-05-18
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Write a query in SQL to list the employees of the grade same as the grade of TUCKER or experience is more than SANDRINE and who are belonging to SYDNEY or PERTH.

Sample table: employees

emp_id | emp_name | job_name  | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+-----------+------------+------------+---------+------------+--------
  68319 | KAYLING  | PRESIDENT |            | 1991-11-18 | 6000.00 |            |   1001
  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
  63679 | SANDRINE | CLERK     |      69062 | 1990-12-18 |  900.00 |            |   2001
  64989 | ADELYN   | SALESMAN  |      66928 | 1991-02-20 | 1700.00 |     400.00 |   3001
  65271 | WADE     | SALESMAN  |      66928 | 1991-02-22 | 1350.00 |     600.00 |   3001
  66564 | MADDEN   | SALESMAN  |      66928 | 1991-09-28 | 1350.00 |    1500.00 |   3001
  68454 | TUCKER   | SALESMAN  |      66928 | 1991-09-08 | 1600.00 |       0.00 |   3001
  68736 | ADNRES   | CLERK     |      67858 | 1997-05-23 | 1200.00 |            |   2001
  69000 | JULIUS   | CLERK     |      66928 | 1991-12-03 | 1050.00 |            |   3001
  69324 | MARKER   | CLERK     |      67832 | 1992-01-23 | 1400.00 |            |   1001
(14 rows)
 dep_id |  dep_name  | dep_location
--------+------------+--------------
   1001 | FINANCE    | SYDNEY
   2001 | AUDIT      | MELBOURNE
   3001 | MARKETING  | PERTH
   4001 | PRODUCTION | BRISBANE
(4 rows)
 grade | min_sal | max_sal
-------+---------+---------
     1 |     800 |    1300
     2 |    1301 |    1500
     3 |    1501 |    2100
     4 |    2101 |    3100
     5 |    3101 |    9999
(5 rows)
Sql programming,
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All Answers

hamza
2022-05-18
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SELECT *
FROM employees e,
     department d,
     salary_grade s
WHERE e.dep_id= d.dep_id
  AND d.dep_location IN ('SYDNEY',
                         'PERTH')
  AND e.salary BETWEEN s.min_sal AND s.max_sal
  AND (s.grade IN
         (SELECT s.grade
          FROM employees e,
               salary_grade s
          WHERE e.salary BETWEEN s.min_sal AND s.max_sal
            AND e.emp_name = 'TUCKER')
       OR age (CURRENT_DATE,hire_date) >
         (SELECT age(CURRENT_DATE,hire_date)
          FROM employees
          WHERE emp_name = 'SANDRINE')) ;

Sample Output:

 emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id | dep_id | dep_name  | dep_location | grade | min_sal | max_sal
--------+----------+----------+------------+------------+---------+------------+--------+--------+-----------+--------------+-------+---------+---------
  64989 | ADELYN   | SALESMAN |      66928 | 1991-02-20 | 1700.00 |     400.00 |   3001 |   3001 | MARKETING | PERTH        |     3 |    1501 |    2100
  68454 | TUCKER   | SALESMAN |      66928 | 1991-09-08 | 1600.00 |       0.00 |   3001 |   3001 | MARKETING | PERTH        |     3 |    1501 |    2100
(2 rows)

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