SQL Exercise: Display employees including their department
26. Employee & Department Full Report
From the following tables write a SQL query to display all the data of employees including their department.
Sample table: emp_department
DPT_CODE DPT_NAME DPT_ALLOTMENT
-------- --------------- -------------
57 IT 65000
63 Finance 15000
47 HR 240000
27 RD 55000
89 QC 75000
Sample table: emp_details
EMP_IDNO EMP_FNAME EMP_LNAME EMP_DEPT --------- --------------- --------------- ---------- 127323 Michale Robbin 57 526689 Carlos Snares 63 843795 Enric Dosio 57 328717 Jhon Snares 63 444527 Joseph Dosni 47 659831 Zanifer Emily 47 847674 Kuleswar Sitaraman 57 748681 Henrey Gabriel 47 555935 Alex Manuel 57 539569 George Mardy 27 733843 Mario Saule 63 631548 Alan Snappy 27 839139 Maria Foster 57
Sample Solution:
-- Selecting specific columns with renamed aliases from the result of an inner join between 'emp_details' and 'emp_department' tables
SELECT emp_idno, A.emp_fname AS "First Name", emp_lname AS "Last Name",
B.dpt_name AS "Department", emp_dept, dpt_code, dpt_allotment
-- Specifying the tables to retrieve data from ('emp_details' as 'A' and 'emp_department' as 'B')
FROM emp_details A
-- Performing an inner join based on the equality of 'emp_dept' in 'emp_details' and 'dpt_code' in 'emp_department'
INNER JOIN emp_department B
ON A.emp_dept = B.dpt_code;
Output of the Query:
emp_idno First Name Last Name Department emp_dept dpt_code dpt_allotment 631548 Alan Snappy RD 27 27 55000 839139 Maria Foster IT 57 57 65000 127323 Michale Robbin IT 57 57 65000 526689 Carlos Snares Finance 63 63 15000 843795 Enric Dosio IT 57 57 65000 328717 Jhon Snares Finance 63 63 15000 444527 Joseph Dosni HR 47 47 240000 659831 Zanifer Emily HR 47 47 240000 847674 Kuleswar Sitaraman IT 57 57 65000 748681 Henrey Gabriel HR 47 47 240000 555935 Alex Manuel IT 57 57 65000 539569 George Mardy RD 27 27 55000 733843 Mario Saule Finance 63 63 15000
Explanation:
The said SQL query is selecting the employee ID (emp_idno), first name (A.emp_fname) with an alias 'First Name', last name (emp_lname) with an alias 'Last Name', department name (B.dpt_name) with an alias 'Department', emp_dept and department code (dpt_code) and department allotment (dpt_allotment) by joining the emp_details table A and emp_department table B on the emp_dept column of the emp_details table and the dpt_code column of the emp_department table. The query is joining the two tables together and displaying the selected columns from both tables.
Practice Online
Query Visualization:
Duration:
Rows:
Cost:
For more Practice: Solve these Related Problems:
- Write a SQL query to join emp_details and emp_department on EMP_DEPT = DPT_CODE and display all columns from both tables.
- Write a SQL query to produce a full report of employees with their respective department details using an INNER JOIN.
- Write a SQL query to list every employee along with department name and allotment by joining the two tables on the department code.
- Write a SQL query to display all employee data combined with department information, ensuring that each employee’s department details are included.
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Previous SQL Exercise: Display ID and price of most expensive product.
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