--只會這一種復雜的方法
select
    *,(case when isnull(bus1,'')='' then 0 else 1 end)
    +(case when isnull(bus2,'')='' then 0 else 1 end)
    +(case when isnull(bus3,'')='' then 0 else 1 end)
    +(case when isnull(bus4,'')='' then 0 else 1 end)
    +(case when isnull(bus5,'')='' then 0 else 1 end)
    +(case when isnull(bus6,'')='' then 0 else 1 end) 总数
from 你的表;

------解决方案--------------------

--创建测试数据：
  go
  if OBJECT_ID('tbl')is not null
  drop table tbl
  go
  create table tbl(
  col1 varchar(5),
  col2 varchar(5),
  col3 varchar(5),
  col4 varchar(5),
  col5 varchar(5),
  col6 varchar(5),
  col7 varchar(5),
  col8 varchar(5)
  )
  
insert tbl
  select '1',null,'2',null,'3','4','5','6' union all
  select '1','2','3',null,null,null,null,'4' union all
  select '1','2',null,'3','4','5','6','7' union all
  select '1',null,null,'2','3',null,'4',null
  --静态实现方法
  --"+"想加统计各个“case when else”的结果来达到目的：
  select *,  
case when col1 is not null then 1 else 0 end+
  case when col2 is not null then 1 else 0 end+
  case when col3 is not null then 1 else 0 end+
  case when col4 is not null then 1 else 0 end+
  case when col5 is not null then 1 else 0 end+
  case when col6 is not null then 1 else 0 end+
  case when col7 is not null then 1 else 0 end+
  case when col8 is  null then 1 else 0 end as notnull
  from tbl
  
--动态实现方法
  

declare @str varchar(max)
  set @str=''
  select @str= @str+'+ case when ' + name +' is not null then 1 else 0 end'+char(13)+char(10)
  
--char(13)+char(10)实现换行
  from syscolumns where id = OBJECT_ID('tbl')
  --print @str
  set @str='select *,'+@str+' as notnull from tbl'
  --print @str
  exec(@str)
  


/*
  j结果：
  col1    col2    col3    col4    col5    col6    col7    col8    notnull
  1    NULL    2    NULL    3    4    5    6    5
  1    2    3    NULL    NULL    NULL    NULL    4    3
  1    2    NULL    3    4    5    6    7    6
  1    NULL    NULL    2    3    NULL    4    NULL    5
  */


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