該搜索條件對於谷歌而言是不明確的。我正在查看一個SQL調用,它有2個FROM關鍵字?我從來沒有見過這個,有人可以解釋嗎?SQL Server - 多個FROM關鍵字?
SELECT TOP(5) SUM(column) AS column, column
FROM (SELECT DISTINCT column, column, column
FROM ((((((table table
INNER JOIN table table ON (column = column
AND column = 2
AND column != ''))
INNER JOIN table table ON (column = column
AND (column = 144 OR column = 159 OR column = 162 OR column = 164 OR column = 163 OR column = 1 OR column = 2 OR column = 122 OR column = 155 OR column = 156)))
inner join table table ON (column = column
AND column = 0))
INNER JOIN table ON (column = column ))
INNER JOIN table table ON (column = column
AND (column = 102 OR column = 103)))
INNER JOIN table table ON (column = column ))) TempTable
GROUP BY column ORDER BY column desc
您將注意到多個FROM關鍵字。它運行得很好。只是好奇目的是什麼。
您可能會看到一個嵌套的子查詢。 – SLaks
我以爲你需要UNION關鍵字來做到這一點? –
您的省略號可以防止我們看到實際問題 – billinkc