Question

   protected void Page_Load(object sender, EventArgs e)
      {
        // do connection Here.
        string strShowing = "Select m.MovieName, m.Restriction, m.Language,s.StartTime   from Movie m Inner Join Schedule s ON m.MovieID=s.MovieID";

         conLoginDetails.Close();

如何将时间分组到相同的电影中。

Answer 1

对于字符串连接，AFAIK，没有内置函数这样做。但您可以使用FOR XML来执行此操作。像这样：

WITH CTE
AS
(
    Select m.MovieName, m.Restriction, m.Language, s.StartTime   
    from Movie m 
    Inner Join Schedule s ON m.MovieID=s.MovieID
    Where Status='Release'
)
SELECT 
  t1.MovieName,
  t1.Restriction,
  t1.Language,
  STUFF((
    SELECT ', ' + t2.StartTime
    FROM CTE t2
    WHERE t2.MovieName = t1.MovieName
    FOR XML PATH (''))
  ,1,2,'') AS StartTime
FROM CTE t1
GROUP BY t1.MovieName,
         t1.Restriction,
         t1.Language;

使用此查询代替您已使用的查询：

string strShowing = "--put the query here--";

请注意：我使用CTE而不是在相关子查询中再次编写原始查询。

在相同的电影名称下显示时间

1 个答案: