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Asked: 2026-05-30T02:35:23+00:00

This is my query, select a.nvrEquipment as [Equiment Name],a.Availability,b.Breakdown,c.Idle from (select nvrEquipment,sum(fltQuantity) as [Availability]

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This is my query,

select a.nvrEquipment as [Equiment Name],a.Availability,b.Breakdown,c.Idle from 
(select nvrEquipment,sum(fltQuantity) as [Availability] from tblEquipment 
where intstatus in(1,2,3) group by nvrEquipment) a left join 
(select nvrEquipment,sum(fltQuantity) as [Breakdown] from tblEquipment 
where intstatus = 2 group by nvrEquipment) b on a.nvrEquipment=b.nvrEquipment left join
(select nvrEquipment,sum(fltQuantity) as [Idle] from tblEquipment 
where intstatus = 3 group by nvrEquipment) c on a.nvrEquipment=c.nvrEquipment

I need the another column Utilization in %:

Formula is:

Utilization in % = (Breakdown + Idle) / Avalilability * 100

Equiment Name  Availability      Breakdown    Idle    Utilization
Crane            3             1            1
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1 Answer

  1. Editorial Team

    Seems pretty straightforward:

    select a.nvrEquipment as [Equiment Name],a.Availability,b.Breakdown,c.Idle,
(b.Breakdown + c.Idle) * 100 / NULLIF(a.Availability, 0) as Utilization
from 
(select nvrEquipment,sum(fltQuantity) as [Availability] from tblEquipment 
where intstatus in(1,2,3) group by nvrEquipment) a left join 
(select nvrEquipment,sum(fltQuantity) as [Breakdown] from tblEquipment 
where intstatus = 2 group by nvrEquipment) b on a.nvrEquipment=b.nvrEquipment left join
(select nvrEquipment,sum(fltQuantity) as [Idle] from tblEquipment 
where intstatus = 3 group by nvrEquipment) c on a.nvrEquipment=c.nvrEquipment
    • I multiplied before dividing to obviate INTEGER rounding, if any.
    • I used NULLIF to handle division-by-zero.
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