sql - how to update row -

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i hv table this:-

id    model     value dax   fab01      daz   fab01 daa   fab01 dax   fab02      daz   fab02 daa   fab02

i need update table final output this:-

id    model     value dax   fab01     123 daz   fab01     789   daa   fab01     963 dax   fab02     456 daz   fab02     951 daa   fab02     753

i tried below:-

update [table] set value = case               when model='fab01' , id='dax' '123'               when model='fab01' , id='daz' '789'               when model='fab01' , id='daa' '963'               when model='fab02' , id='dax' '456'               when model='fab02' , id='dax' '951'               when model='fab02' , id='dax' '753'               else value             end

re-run above & works now.

thanks.

   update [tablename]    set value = 123     id = "dax" , model = "fab01"

etc..repeat each row


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