Combine two SQL Queries to prevent having to use a loop - sql

Question

I need to combine two SQL Queries and I'm hurting myself trying to think through it. My first query gets the number of visitors per day and the second query gets the number of unique visitors per day.
Query 1 - For getting the number of visits
SELECT Count(server_instances.game_id) AS visit_count,
refined_player_visits.visit_date AS visit_date
FROM work.refined_player_visits
INNER JOIN tapi.server_instances
ON server_instances.server_id = refined_player_visits.server_id
WHERE ( server_instances.game_id = "31" )
GROUP BY visit_date;
Query 2 - For getting the number of unique visits
SELECT Count(visit_counts.unique_visit_date) AS unique_visits
FROM (SELECT Count(refined_player_visits.server_id) AS visit_count,
refined_player_visits.visit_date AS unique_visit_date
FROM refined_player_visits
INNER JOIN server_instances
ON server_instances.server_id =
refined_player_visits.server_id
WHERE ( server_instances.place_id = "31"
AND refined_player_visits.visit_date <= CURRENT_VISIT_DATE )
GROUP BY refined_player_visits.roblox_id) AS visit_counts
WHERE ( visit_counts.visit_date = CURRENT_VISIT_DATE
AND visit_counts.visit_count = 1 )
Because this was originally for a web application, I got the results back from the first query and looped through each one. During each loop I would do the second query (where CURRENT_VISIT_DATE is actually the visit_date from the first query.
I'd like to turn this into one query using a JOIN, perhaps. I'm migrating to another system and I don't have the option of doing a second query in the loop statement, so I want to just combine the two queries. I can't seem to wrap my head around it, though.

Answer 1

Does this return what you want?
SELECT *
FROM
(
SELECT Count(server_instances.game_id) AS visit_count,
refined_player_visits.visit_date AS visit_date
FROM work.refined_player_visits
INNER JOIN tapi.server_instances
ON server_instances.server_id = refined_player_visits.server_id
WHERE ( server_instances.game_id = "31" )
GROUP BY visit_date
) AS FirstQuery,
(
SELECT Count(visit_counts.unique_visit_date) AS unique_visits
FROM (SELECT Count(refined_player_visits.server_id) AS visit_count,
refined_player_visits.visit_date AS unique_visit_date
FROM refined_player_visits
INNER JOIN server_instances
ON server_instances.server_id =
refined_player_visits.server_id
WHERE (server_instances.place_id = "31"
AND refined_player_visits.visit_date <= FirstQuery.visit_date)
GROUP BY refined_player_visits.roblox_id) AS visit_counts
WHERE ( visit_counts.visit_date = FirstQuery.visit_date
AND visit_counts.visit_count = 1 )
) AS SecondQuery