Is there an equivalent to Oracle's `dual` table in AWS Athena?

user_9795817 0
Viewed 1303

I typically use Oracle's dual table to test functions that I have never used before prior to incorporating them in other queries. I was wondering if there is an equivalent dummy table in AWS Athena.

For example, I have never used Athena's date_parse function. In Oracle, I would do the following to test if the function works as expected:

select
    date_parse('2021-05-18', '%Y-%m-%d') as does_it_work
from
    dual
;
amazon-athena sql
1 Answers

dual should not be needed. You can just do:

select date_parse('2021-05-18', '%Y-%m-%d') as does_it_work

Or if you really like dual, you can do:

with dual as (
      select 1 as dummy
     )
select date_parse('2021-05-18', '%Y-%m-%d') as does_it_work
from dual;
user_11440350
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