[belugin]

Макрос можно покороче:

#localmacro.select
    Select tableName
        where ...
    %1
    join joinTableName
        where ...
#endmacro

static void Job(Args _args)
{       

    if (flag)
        #select(exists);
    else
        #select(notexists);

    while (tableName)
    {
    
        next tableName;
    }
}