Related and non-related SQL queries putted together [closed] - sql

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I have two questions, one is how I can put these two queries together (add just the right column). Example:
Query 1
Phase menCount
A 40
B 50
C 60
D 20
Query 2
Phase womenCount
A 60
B 50
C 40
Wanted query result
Phase menCount womenCount
A 40 60
B 50 50
C 60 40
D 20 NULL
The second question is, how I can put together columns from non-related queries. Is this possible at all? I have at least 10 different srcripts and if I can put them into one call, it would be easier. Example:
Query 1
Phase phaseCount
A 20
B 40
C 60
Query 2
Stage stageCount
W 90
X 120
Y 150
Z 190
Wanted query result
Phase phaseCount Stage stageCount
A 20 W 90
B 40 X 120
C 60 Y 150
Z 190
Thanks for answers.

Answer 1

To put two queries together you can treate them as "table expressions". For example
select
coalesce(a.phase, b.phase) as phase,
a.mencount,
b.womencount
from (
-- query #1 here
) a
full join (
-- query #2 here
) b on a.phase = b.phase
To put unrelated queries together you need to produce a joining condition somewhere. For example, you can modify each query to produce an artificial row number using the ROW_NUMBER() function; then you can use this value to join against each other, as in:
select
a.*, b.*
from (
-- modified query #1 now
select
...,
row_number() over(order by ...) as rn
from ...
) a
full join (
-- modified query #2 now
select
...,
row_number() over(order by ...) as rn
from ...
) b on a.rn = b.rn
order by coalesce(a.rn, b.rn)