SQL Exercise: Employees who was hired during given dates
12. From the following table, write a SQL query to find those employees who were hired between November 5th, 2007 and July 5th, 2009. Return full name (first and last), job id and hire date.
Sample table: employees+-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+ | EMPLOYEE_ID | FIRST_NAME | LAST_NAME | EMAIL | PHONE_NUMBER | HIRE_DATE | JOB_ID | SALARY | COMMISSION_PCT | MANAGER_ID | DEPARTMENT_ID | +-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+ | 100 | Steven | King | SKING | 515.123.4567 | 2003-06-17 | AD_PRES | 24000.00 | 0.00 | 0 | 90 | | 101 | Neena | Kochhar | NKOCHHAR | 515.123.4568 | 2005-09-21 | AD_VP | 17000.00 | 0.00 | 100 | 90 | | 102 | Lex | De Haan | LDEHAAN | 515.123.4569 | 2001-01-13 | AD_VP | 17000.00 | 0.00 | 100 | 90 | | 103 | Alexander | Hunold | AHUNOLD | 590.423.4567 | 2006-01-03 | IT_PROG | 9000.00 | 0.00 | 102 | 60 | | 104 | Bruce | Ernst | BERNST | 590.423.4568 | 2007-05-21 | IT_PROG | 6000.00 | 0.00 | 103 | 60 | | 105 | David | Austin | DAUSTIN | 590.423.4569 | 2005-06-25 | IT_PROG | 4800.00 | 0.00 | 103 | 60 | | 106 | Valli | Pataballa | VPATABAL | 590.423.4560 | 2006-02-05 | IT_PROG | 4800.00 | 0.00 | 103 | 60 | | 107 | Diana | Lorentz | DLORENTZ | 590.423.5567 | 2007-02-07 | IT_PROG | 4200.00 | 0.00 | 103 | 60 | | 108 | Nancy | Greenberg | NGREENBE | 515.124.4569 | 2002-08-17 | FI_MGR | 12008.00 | 0.00 | 101 | 100 | | 109 | Daniel | Faviet | DFAVIET | 515.124.4169 | 2002-08-16 | FI_ACCOUNT | 9000.00 | 0.00 | 108 | 100 | ...... | 206 | William | Gietz | WGIETZ | 515.123.8181 | 2002-06-07 | AC_ACCOUNT | 8300.00 | 0.00 | 205 | 110 | +-------------+-------------+-------------+----------+--------------------+------------+------------+----------+----------------+------------+---------------+
Sample Solution:
-- Selecting a concatenated string of 'first_name' and 'last_name' as 'Full_Name',
-- along with 'job_id' and 'hire_date' columns from the 'employees' table
SELECT first_name || ' ' || last_name AS Full_Name, job_id, hire_date
-- Specifying the table to retrieve data from ('employees')
FROM employees
-- Filtering the results based on the condition that 'hire_date' is between '2007-11-05' and '2009-07-05'
WHERE hire_date BETWEEN '2007-11-05' AND '2009-07-05';
Sample Output:
full_name | job_id | hire_date
------------------+------------+------------
Luis Popp | FI_ACCOUNT | 2007-12-07
Kevin Mourgos | ST_MAN | 2007-11-16
Steven Markle | ST_CLERK | 2008-03-08
Ki Gee | ST_CLERK | 2007-12-12
Hazel Philtanker | ST_CLERK | 2008-02-06
Eleni Zlotkey | SA_MAN | 2008-01-29
Oliver Tuvault | SA_REP | 2007-11-23
Mattea Marvins | SA_REP | 2008-01-24
David Lee | SA_REP | 2008-02-23
Sundar Ande | SA_REP | 2008-03-24
Amit Banda | SA_REP | 2008-04-21
Sundita Kumar | SA_REP | 2008-04-21
Charles Johnson | SA_REP | 2008-01-04
Girard Geoni | SH_CLERK | 2008-02-03
Randall Perkins | SH_CLERK | 2007-12-19
Douglas Grant | SH_CLERK | 2008-01-13
(16 rows)
Code Explanation:
The said query in SQL that retrieves the first name, last name concatenated as "Full_Name", job_id, and hire_date columns from the 'employees' table where the hire_date is between November 5th, 2007 and July 5th, 2009.
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