如何使用两个不同的表进行 SQL 查询

Question

I cannot fine same question in here, so I write it.

I need one SQL query for below details; I have two tables and 2st table has team_id and 2nd table have home_team_id and away_team_id and home and away scores.

I can make home and away matches separately as below queries already:

Home Matches Query:

SELECT Distinct m.week,m.match_date, h.team_name as Home, a.team_name as AWAY,m.home_score,m.away_score,m.league_id
FROM matches m,teams h,teams a, leagues l
WHERE h.team_id=m.home_team_id and a.team_id=m.away_team_id
and h.team_name ='Real Madrid'  and m.league_id = 1;

Away Matches Query:

SELECT Distinct m.week,m.match_date, h.team_name as Home, a.team_name as AWAY,m.home_score,m.away_score,m.league_id
FROM matches m,teams h,teams a, leagues l
WHERE h.team_id=m.home_team_id and a.team_id=m.away_team_id
and a.team_name ='Real Madrid'  and m.league_id = 1;

I want to see one team home and away results in same query.

My Tables are: (matches and teams)

matches table columns are; match_id match_date, home_team_id, away_team_id, home_score, away_score

teams table columns are; team_id, team_name

I want to see below result:

One team's Home and Away score in one table as

Example: Team is Real Madrid

Results:

Home Team	Away Team	Home Score	Away Score
Real Madrid	Barcelona	1	0
Real Madrid	Cadiz	1	1
Real Madrid	A. Madrid	2	2
Villareal	Real Madrid	2	0
Valencia	Real Madrid	1	3

Answer 1

You have to join two tables with teams table and matches table. Use OR paramater instead of AND.

Answer 2

Use the same query, but test the team name against either h.team_name or a.team_name .

SELECT Distinct m.week,m.match_date, h.team_name as Home, a.team_name as AWAY,m.home_score,m.away_score,m.league_id
FROM matches m
JOIN teams h ON h.team_id=m.home_team_id
JOIN teams a ON a.team_id=m.away_team_id
WHERE 'Real Madrid' IN (h.team_name, a.team_name) and m.league_id = 1;