다음 쿼리는 어떤 수의 레코드도 반환하지 않습니다.
"[SELECT Id FROM Account WHERE Id = :Trigger.new[0].Account__c]"
쿼리에서 행을 반환하지 않을 경우 오류 "SObject에 할당할 행이 목록에 없음"이 발생합니다.
Player__c player = [SELECT Id from Player__c where Name = :username]; if (player != null) p = player.Id;
Player__c[] players = [SELECT Id from Player__c where Name = :username]; if (players.size() > 0) p = players[0].Id;
000385697

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