SQL Puzzle:
You have a table with 2 columns: literal and num with data as shown below:
Literal NUM
a 4
b 3
c 2
Write a query that returns the output as:
Literal
----------
a
a
a
a
b
b
b
c
c
The NUM represents the number of times the literal has to be repeated in the output
Solution:
The query will be as follows:
select a.literal
from
(select literal, num from explode) a, (select rownum rn from user_objects) b
where b.rn<=a.num
You have a table with 2 columns: literal and num with data as shown below:
Literal NUM
a 4
b 3
c 2
Write a query that returns the output as:
Literal
----------
a
a
a
a
b
b
b
c
c
The NUM represents the number of times the literal has to be repeated in the output
Solution:
The query will be as follows:
select a.literal
from
(select literal, num from explode) a, (select rownum rn from user_objects) b
where b.rn<=a.num
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