ALTER VIEW [dbo].[view_TreeLevel] AS WITH cte AS ( SELECT a.ModuleID,a.Module_Name,a.Module_Description,a.Module_FatherID,a.Module_Url,a.Module_Order,1 Level FROM TT_TreeView a WHERE a.Module_FatherID=0 UNION ALL SELECT b.ModuleID,b.Module_Name,b.Module_Description,b.Module_FatherID,b.Module_Url,b.Module_Order,Level+1 FROM TT_TreeView b INNER JOIN cte c ON b.Module_FatherID = c.ModuleID ) SELECT TOP 100 PERCENT * FROM cte ORDER BY Level
CREATE TABLE [dbo].[AreaTable]( [Id] int PRIMARY KEY IDENTITY(1,1) NOT NULL,[Name] [varchar](50) NOT NULL,[Parent] int NOT NULL,) GO INSERT INTO [AreaTable] SELECT '中国',0 UNION ALL SELECT '广东',1 UNION ALL SELECT '湖南',1 UNION ALL SELECT '深圳',2 UNION ALL SELECT '长沙',3 UNION ALL SELECT '福田',4 UNION ALL SELECT '南山',4 UNION ALL SELECT '天心',5 UNION ALL SELECT '岳麓',5 UNION ALL SELECT '芙蓉',5 UNION ALL SELECT '蛇口',7 UNION ALL SELECT '科技园',7 GO --查询全国 WITH temp AS ( SELECT *,1 Level FROM [AreaTable] WHERE Parent = 1 --1全国 2广东 UNION ALL SELECT m.*,Level+1 FROM [AreaTable] AS m INNER JOIN temp AS child ON m.Parent = child.Id ) SELECT * FROM temp ORDER BY temp.Level
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