Case SQL statements of Usage

Code as below:

Remark by Jimmy Jun 20th 2010

1、无标题

select ltrim(a.prodid),

    case ProdStatus

    when 0 then '已创建'  when 1 then '已估计'

    when 2 then '已计划'  when 3 then '已发放'

    when 4 then '已开始'  when 5 then '生产入库'

    when 6 then '成本已核算'when 7 then '已结束' end

,a.createddate,b.[name] 

from prodtable a

-------------------------------------

 

2、有标题一

select ltrim(a.prodid),'工单状态'  = 

    case ProdStatus

    when 0 then '已创建'  when 1 then '已估计'

    when 2 then '已计划'  when 3 then '已发放'

    when 4 then '已开始'  when 5 then '生产入库'

    when 6 then '成本已核算'when 7 then '已结束' end

,a.createddate,b.[name] 

from prodtable a

-------------------------------------

3、有标题二

 

select ltrim(a.prodid),

    case ProdStatus

    when 0 then '已创建'  when 1 then '已估计'

    when 2 then '已计划'  when 3 then '已发放'

    when 4 then '已开始'  when 5 then '生产入库'

    when 6 then '成本已核算'when 7 then '已结束' end AS '工单状态' 

,a.createddate,b.[name] 

from prodtable a

-------------------------------------

4、有标题，但没有省略

select ltrim(a.prodid),

'工单状态' = case

    when ProdStatus = 0 then '已创建'   when ProdStatus = 1 then '已估计'

    when ProdStatus = 2 then '已计划'   when ProdStatus = 3 then '已发放'

    when ProdStatus = 4 then '已开始'   when ProdStatus = 5 then '生产入库'

    when ProdStatus = 6 then '成本已核算'   when ProdStatus = 7 then '已结束' end

,a.createddate,b.[name] 

from prodtable a