sql - 如何将存储过程转换为 SQL Server Compact Edition 查询

Question

我有一个需要转换为标准查询的存储过程。由于我使用的是 SQL Server Compact，因此没有存储过程。

这是我的存储过程：

declare @colu nvarchar (max) , @hour int
set @hour = DATEPART(HH, GETDATE() )
select @hour
select @colu = 

case when @hour=24
then '[12:00AM(00:00)]'  
enter code here
when @hour >12 and @hour <24
then '['+ convert(varchar,@hour-12) +':00PM('+ convert(nvarchar ,@hour) +':00)]'
when @hour=12
then '[12:00PM(12:00)]'
when @hour <12 and @hour >9
then '['+convert(nvarchar ,@hour) +':00AM('+ convert(nvarchar ,@hour) +':00)]'
else '['+convert(nvarchar ,@hour) +':00AM(0'+ convert(nvarchar ,@hour) +':00)]'
end

select @colu
declare @sql nvarchar(max)
set @sql= 'select ID,'''+ @colu + ''' as time from table'  -- add quote here
select @sql
exec sp_executesql @sql

就像我说的，我在这里有点难过。有任何想法吗？

Answer 1

这是我用来确定时间值并动态指定列名的代码：

            float basalrate = 0;
        DateTime HourVal = Convert.ToDateTime(PumpEditTime);
        if (HourVal == null)
        {
            HourVal = DateTime.Now;
        }
        int hourval = HourVal.Hour;
        int ampmhour = Convert.ToInt32(HourVal.ToString("hh"));
        string hourampm = string.Empty;

        if (hourval == Convert.ToInt32("24"))
        {
            hourampm = "[12:00AM(00:00)]";
        }
        else if ((hourval > 12) && (hourval < 24))
        {
            hourampm = "[" + ampmhour + ":00PM(" + hourval + ":00)]";
        }
        else if (hourval == 12)
        {
            hourampm = "[12:00PM(12:00)]";
        }
        else if ((hourval < 12) && (hourval > 9))
        {
            hourampm = "[" + ampmhour + ":00AM(" + hourval + ":00)]";
        }
        else
        {
            hourampm = "[" + ampmhour + ":00AM(0" + hourval + ":00)]";
        }