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SQL exercises on employee Database: List the name of employees and their manager separated by the string 'works for'

SQL employee Database: Exercise-19 with Solution

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19. From the following table, write a SQL query to find the name of employees and their manager separated by the string 'works for'.

Sample table: employees


Pictorial Presentation:

SQL exercises on employee Database: List the name of employees and their manager separated by the string 'works for'

Sample Solution:

SELECT e.emp_name || ' works for ' || m.emp_name
FROM employees e,
     employees m
WHERE e.manager_id = m.emp_id;

Sample Output:

         ?column?
--------------------------
 BLAZE works for KAYLING
 CLARE works for KAYLING
 JONAS works for KAYLING
 SCARLET works for JONAS
 FRANK works for JONAS
 SANDRINE works for FRANK
 ADELYN works for BLAZE
 WADE works for BLAZE
 MADDEN works for BLAZE
 TUCKER works for BLAZE
 ADNRES works for SCARLET
 JULIUS works for BLAZE
 MARKER works for CLARE
(13 rows)

Practice Online


Sample Database: employee

employee database structure

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Previous: From the following table, write a SQL query to find those employees who joined in the month January. Return complete information about the employees.
Next: From the following table, write a SQL query to find those employees whose designation is ‘CLERK’. Return complete information about the employees.

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SQL: Tips of the Day

How to restore a dump file from mysqldump?

It should be as simple as running this:

mysql -u <user> -p < db_backup.dump

If the dump is of a single database you may have to add a line at the top of the file:

USE <database-name-here>;

Ref: https://bit.ly/3xKmyw2