Question

我有以下Select语句，我需要创建一个存储过程，它将选择要运行的语句，猜测这必须基于变量（newb here）。我已经阅读了有关通过参数的内容，但在我的搜索中没有看到适用于这种情况的示例，请帮帮我。

我在SQL Server 2014中。

第一句话

select
   cast(dateadd(hour,-4,getdate())-max(esig_date) as time) as time_since_last_esig,
   case 
          when datepart(hour,dateadd(hour,-4,getdate()))>=8 and datepart(hour,dateadd(hour,-4,getdate()))<22 and cast(dateadd(hour,-4,getdate())-max(esig_date) as time)>='00:30:00.0000000' then 'alert'
          else 'no alert' 
   end as alert_status
from activity_table

第二声明

select
   cast(dateadd(hour,-4,getdate())-max(esig_date) as time) as time_since_last_esig,
   case 
          when datepart(hour,dateadd(hour,-4,getdate()))<8 and datepart(hour,dateadd(hour,-4,getdate()))>=22 and cast(dateadd(hour,-4,getdate())-max(esig_date) as time)>='01:00:00.0000000' then 'alert'
          else 'no alert' 
   end as alert_status
from activity_table

Answer 1

像这样的工作

CREATE PROCEDURE ChooseWhichOne
    @Selection BIT
AS
BEGIN

    IF @Selection = 0
    BEGIN
        select
           cast(dateadd(hour,-4,getdate())-max(esig_date) as time) as time_since_last_esig,
           case 
                  when datepart(hour,dateadd(hour,-4,getdate()))>=8 and datepart(hour,dateadd(hour,-4,getdate()))<22 and cast(dateadd(hour,-4,getdate())-max(esig_date) as time)>='00:30:00.0000000' then 'alert'
                  else 'no alert' 
           end as alert_status
        from activity_table     
    END
    ELSE
    BEGIN
        select
           cast(dateadd(hour,-4,getdate())-max(esig_date) as time) as time_since_last_esig,
           case 
                  when datepart(hour,dateadd(hour,-4,getdate()))<8 and datepart(hour,dateadd(hour,-4,getdate()))>=22 and cast(dateadd(hour,-4,getdate())-max(esig_date) as time)>='01:00:00.0000000' then 'alert'
                  else 'no alert' 
           end as alert_status
        from activity_table     
    END

    RETURN 0

END

AND执行存储的PROCEDURE

EXEC dbo.ChooseWhichOne @Selection = 0 -- bit
EXEC dbo.ChooseWhichOne @Selection = 1 -- bit

从两个不同的选择语句中选择的存储过程

1 个答案: