I get error the multi-part identifier "rhst.name" could not be bound.?

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How to use Exists on this sql statement ?

update m set m.rohsstatus=RHst.Name from #ManuFacture m

                         inner JOIN Parts.ROHS Rhh WITH(NOLOCK) ON Rhh.ZPartID=m.PartID
             inner JOIN Nop_AcceptedValuesOption RHst WITH(NOLOCK) on RHst.AcceptedValuesOptionID=Rhh.RoHSStatus AND RHst.AcceptedValuesID=911

i need to update table ManuFacture where part id exist on Parts.ROHS

so i need it as below

update m set m.rohsstatus=RHst.Name from #ManuFacture m
where exists(select 1 from Parts.ROHS)

so i need to replace statement above by using exists but i can't do

What I have tried:

update m set m.rohsstatus=RHst.Name	   from #ManuFacture m
						where exists(select 1 from

							 Parts.ROHS Rhh WITH(NOLOCK) 
				inner JOIN Nop_AcceptedValuesOption RHst WITH(NOLOCK) 
				on RHst.AcceptedValuesOptionID=Rhh.RoHSStatus AND RHst.AcceptedValuesID=911
				where m.partid=Rhh.zpartid )

Posted 18-Feb-21 0:26am

ahmed_sa

Updated 18-Feb-21 1:12am

v2

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Richard Deeming · Answer 1 · 2021-02-18T01:12:00

Don't specify a table name or alias for the columns you're updating.

You also can't refer to columns in a sub-query from the outer query. You need to join to the relevant tables instead.

SQL

UPDATE
    m
SET
    rohsstatus = RHst.Name
FROM
    #Manufacture m
    INNER JOIN Parts.ROHS Rhh ON Rhh.zpartid = m.partid
    INNER JOIN Nop_AcceptedValuesOption RHst ON RHst.AcceptedValuesOptionID = Rhh.RoHSStatus AND RHst.AcceptedValuesID = 911
;