检查是否存在两条相同的记录

代码
SELECT  d.DepartmentId,  COUNT (d.DepartmentId)  as  Acount
FROM  OrgChart_Departments d
JOIN  dbo.OrgChart_RoleInDepartments rd  ON  d.DepartmentId  =  rd.DepartmentId
WHERE  d.Disable  =   0
AND  rd.RoleId  =   ' 80195321-d274-4d2c-9fce-85b9c1ced4f1 '   group   by  d.DepartmentId

 

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