What SQL coding standard do you follow? [closed]

Answer 1

create table
    #tempTable (
        col1 int,
        col2 int,
        col3 int
    )

insert into
    #tempTable (
        col1,
        col2,
        col3
    )
    select
        col1,
        col2,
        col3
    from
        Table3
        inner join Table2
            on Table1.col1 = Table2.col2
    where col1 = 5

select
    col2,
    case when col1 = 3
        then 'something'
        else 'somethingelse'
    end
from #tempTable
where
    col1 = 5
    and (
        col2 = 5
        or col3 in (
            select field
            from Table2
            where
                somecol = 2
                and othercol = 5
        )
    )