-- 마지막 수정: 파트2 1470

-- [길마가 없는 길드 바로잡기]

-- 1. 길마뿐 아니라 길드원이 없으나 존재하는 길드 검색
SELECT strGuildName FROM TblGuildInfo
WHERE nGuildID NOT IN (SELECT Distinct nGuildID FROM TblGuildMember)

-- 1-1. 해당 길드들 삭제
DELETE TblGuildInfo
WHERE nGuildID NOT IN (SELECT Distinct nGuildID FROM TblGuildMember)

-- 2. 길마가 없는 길드 검색
SELECT strGuildName FROM TblGuildInfo
WHERE nGuildID NOT IN (SELECT Distinct nGuildID FROM TblGuildMember WHERE nPosition = 1)

-- 2-1. 길마 만들어 주기 (길마 우선 순위 : 레벨 > 명성치 > 캐릭터명 > 인벤토리 금액)
DECLARE @ROW	INT
DECLARE @GuildID INT
DECLARE @TABLE TABLE
(
	nRowID	INT	IDENTITY(1,1)
,	nGuildID	INT
)

INSERT INTO @TABLE
SELECT nGuildID FROM TblGuildInfo
WHERE nGuildID NOT IN (SELECT Distinct nGuildID FROM TblGuildMember WHERE nPosition = 1)

SET @ROW = @@ROWCOUNT

WHILE (@ROW > 0)
BEGIN
	
	SELECT @GuildID = nGuildID FROM @TABLE WHERE nRowID = @ROW	
	
	UPDATE TblGuildMember
	SET nPosition = 1
	FROM (
		SELECT TOP 1 B.nGuildID,nCID FROM CharInfo A join TblGuildMember B 
		ON A.CID = B.nCID
		WHERE nGuildID = @GuildID
		ORDER BY A.Level desc,A.Fame desc) C,TblGuildMember D

	WHERE C.nGuildID = D.nGuildID AND C.nCID = D.nCID

	SET @ROW = @ROW - 1
END