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Ich habe die folgende Abfrage, aber ich bin nicht sicher, wo die Alias benötigt wird, kann jemand helfen, den Fehler zu verhindern iJede abgeleitete Tabelle muss eine eigene Alias mysql Fehlermeldung hat
immer bin// Fehler
Every derived table must have its own alias
// Abfrage
SELECT user_id,
SUM(win) as won, SUM(draw) As drawn, SUM(loss) as lost,
SUM(goals_for) as goals_for, SUM(goals_against) as goals_against,
SUM(goals_for) - SUM(goals_against) as goals_difference,
player, username, community_result_id, count(*) as played,
SUM(points) as points
FROM
(SELECT home_team_user_id as user_id,
CASE WHEN home_score > away_score THEN 1 ELSE 0 END as win,
CASE WHEN home_score = away_score THEN 1 ELSE 0 END as draw, CASE
WHEN home_score < away_score THEN 1 ELSE 0 END as loss,
CASE WHEN home_score > away_score THEN 3
WHEN home_score = away_score THEN 1 ELSE 0 END points,
home_score as goals_for, away_score as goals_against,
users.name as player, users.username,
community_results.community_result_id FROM community_results
LEFT JOIN users ON community_results.home_team_user_id=users.id
UNION ALL SELECT away_team_user_id as user_id,
CASE WHEN away_score > home_score THEN 1 ELSE 0 END as win,
CASE WHEN away_score = home_score THEN 1 ELSE 0 END as draw,
CASE WHEN away_score < home_score THEN 1 ELSE 0 END as loss,
CASE WHEN home_score > away_score THEN 3 WHEN home_score = away_score
THEN 1 ELSE 0 END points, away_score as goals_for, home_score as goals_against,
users.name as player, users.username,
community_results.community_result_id FROM community_results
LEFT JOIN users ON community_results.away_team_user_id = users.id)
WHERE user_id = 1 GROUP BY user_id ORDER By won desc LIMIT 1
Wenn eine Abfrage nach einem Alias fragt, ist eine Lösung, es – Strawberry