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CREATE Function GetParentUnit(@UnitId bigint, @Level int)
Returns @Parents Table([UnitId] int ,[UnitName] nvarchar(64),[ParentUnitId] int)
As
Begin
If @Level < 1 --Èç¹û²ÎÊý@LevelСÓÚ“1”£¬ÔòµÃµ½ËùÓи¸µ¥Î»
Begin
Insert @Parents
Select UnitId,UnitName,ParentUnitId
from [T_Unit]
Where [UnitId] = (Select [ParentUnitId]
from [T_Unit] Where [UnitId]=@UnitId)
While @@ROWCOUNT > 0
Begin
Insert @Parents
Select B.UnitId,B.UnitName,B.ParentUnitId
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