>>>Hi,
>>>
>>>I was wondering if I would be breaking some unwritten rule or good practice if I set multiple variables in one line/statement, as following:
>>>
>>>

>>>declare @test1 as char(20), @test2 as char(10), @test3 as varchar(30)
>>>select @test1 = '', @test2 = '', @test3 = ''
>>>

>>>
>>>TIA
>>
>>
>>No, AFAIK, but I prefer multi line.
>>

>>..
>>SET @test1 = '',
>>    @test2 = '',
>>    @test3 = ''
>>..
>>

>>That way is more visible.
>
>I tried the syntax you used but getting an error. Could it be that I am using SQL Server 2005?

No, SET it was my mistake (copy and paste).
Put SET before every variable.