sql server - equals Test into sql -

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i use equals select possible it?

select example

declare @name_surname varchar(200); select (case when (plp.name +' '+ plp.surname) != @name_surname (set @name_surname = (plp.name +' '+ plp.surname))  end) 'lp.',

problem:

(set @name_surname = (plp.name +' '+ plp.surname))

your sql doesn't quite makes sense. seem trying set variable , return value (as "lp.") @ same time. not allowed. here note in documentation:

a select statement contains variable assignment cannot used perform typical result set retrieval operations.

the correct syntax setting variable using select this:

select @name_surname = (case when (plp.name +' '+ plp.surname) !=  @name_surname                              (plp.name +' '+ plp.surname)                              else @name_surname                         end)

that is, set keyword not allowed within select statement.


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