是否有一个在线系统可以转换SQL-LINQ,还是其他任何人都可以帮助转换下面的SQL - LINQ?
SELECT MIN(startTime) As startTime, MAX(endTime) As endTime
FROM tblRA
LEFT JOIN tblA ON tblRA.asID = tblA.asID
WHERE 'xxxxxx' BETWEEN tblRA.startDate AND tblRA.endDate
AND tblA.availabilityDayOfWeek = 7
我遇到的主要问题是.MAX / .MIN。
到目前为止我所拥有的是什么
public List<string> GetResourceAvailabilitiesByDate(DateTime searchDate)
{
DayOfWeek dayOfWeek = searchDate.DayOfWeek;
var minVal = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b.startTime.ToShortTimeString();;
var maxVal = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b.endTime.ToShortTimeString();
var min = minVal.Min(minVal.Min);
var max = maxVal.Max();
return min,max;
提前感谢您提供任何帮助
克莱尔
答案 0 :(得分:1)
我认为你的代码有点不正确,它的第一个症状是你使用重复的代码来定义minval和maxval。我尝试将类似的内容模拟到您想要的内容并转到以下代码,请根据您的需要进行调整。
public List<string> GetResourceAvailabilitiesByDate(DateTime searchDate)
{
DayOfWeek dayOfWeek = searchDate.DayOfWeek;
var vals = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b;
var min = vals.Min(v => v.startTime).ToShortTimeString();
var max = vals.Max(v => v.startTime).ToShortTimeString();
return new List<string>() { min, max };
}
对您的代码进行一些评论,假设它是C#。