ms sql left join select - SQL 代码示例

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📜 ms sql left join select - SQL 代码示例

📅 最后修改于: 2022-03-11 15:04:53.484000 🧑 作者: Mango

SELECT * FROM 
(SELECT [UserID] FROM [User]) a
LEFT JOIN (SELECT [TailUser], [Weight] FROM [Edge] WHERE [HeadUser] = 5043) b
ON a.UserId = b.TailUser