checking if condition in stored procedure( sql server 2005) -

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i have sp need check if condition 

alter   procedure [dbo].[spcheck]    @strempname  varchar(50),    @intreturn  int output,  @intworkdid  int,  @intempid int      begin   if(@intworkdid not null , @intworkdid != '')     begin        if exists ( select *              employee             [empname] = @strempname             , workid = @intworkdid             )          select @intreturn = '1'       end  else     if(@intempid not null , @intempid != '')    begin      if exists ( select *            employee             [empname] = @strempname              , peopleid = @intempid             )          select @intreturn = '1'        end  else if(@intempid not null , @intempid != '')   and(@intworkdid not null , @intworkdid != '')   begin      select @intreturn = '0'     end    end

here based on workid,empid
1 condition , 2 condition should execute

if both condition fail need excute third condition

can 1 tell syntax

thanks

prince

best way can use

try below:

select @intreturn =       case           when @intworkdid null 1           when @intworkdid<>'' 1           when @intempid null 1           when @intempid <>'' 1           else 0      end

case... when

for


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