Nice warm-up before tough kata's! Thanks!

This dojo makes me a poet!

Here is my poem for this exercise:

I tried but no way for DISTINCT
So I listen my instinct!
Then a way comes out SELECT FROM 
WHERE do bring IN from WHERE without DISTINCT!

No DISTINCT, no JOIN, I hear the call,
A pure SELECT FROM—that’s all!
A WHERE within a WHERE so keen,
IN the answer, smooth and clean!

Here is my poem for this exercise:

-- I thought I could round with ROUND(),

-- I even thought I could cast something with CAST(),

-- but only trunc() helped me before I truncated, while I was progressing!

-- The decimals danced away, ROUND couldn’t stay,

-- But trunc() stepped in, leading the way!