3. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation in ORACLE SQL

Que: 3. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. The output column headers should be Doctor, Professor, Singer, and Actor, respectively.

Note: Print NULL when there are no more names corresponding to an occupation.

Pivot the Occupation column in OCCUPATIONS

Input Format: The OCCUPATIONS table is described as follows:

Occupation will only contain one of the following values: Doctor, Professor, Singer, or Actor.

Sample Input

Sample Output

Jenny    Ashley     Meera  Jane
Samantha Christeen  Priya  Julia
NULL     Ketty      NULL   Maria

Explanation

The first column is an alphabetically ordered list of Doctor names.
The second column is an alphabetically ordered list of Professor names.
The third column is an alphabetically ordered list of Singer names.
The fourth column is an alphabetically ordered list of Actor names.
The empty cell data for columns with less than the maximum number of names per occupation (in this case, the Professor and Actor columns) are filled with NULL values.

Solution of Pivot the Occupation column in OCCUPATIONS

Solution

create table occupations(name varchar(50), occupation varchar(50))

INSERT INTO occupations(name, occupation) values('Samantha','Doctor')
INSERT INTO occupations(name, occupation) values('Julia','Actor')
INSERT INTO occupations(name, occupation) values('Maria','Actor')
INSERT INTO occupations(name, occupation) values('Meera','Singer')
INSERT INTO occupations(name, occupation) values('Ashely','Professor')
INSERT INTO occupations(name, occupation) values('Ketty','Professor')
INSERT INTO occupations(name, occupation) values('Christeen','Professor')
INSERT INTO occupations(name, occupation) values('Jane','Actor')
INSERT INTO occupations(name, occupation) values('Jenny','Doctor')
INSERT INTO occupations(name, occupation) values('Priya','Singer')

select doctor,professor,singer,actor from
(
select * from (select name, occupation, (ROW_NUMBER() OVER 
(PARTITION BY occupation ORDER BY name)) as row_num 
from occupations order by name asc) pivot ( min(name) for 
occupation in ('Doctor' as doctor,'Professor' as professor,'Singer' as singer,'Actor' as actor)) 
order by row_num)

ORACLE Live SQL: https://livesql.oracle.com/apex/f?p=590:1000

Download Source Code: 👇

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